621 lines
20 KiB
C++
621 lines
20 KiB
C++
#include "editor/editor.h"
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#include "editor/folds.h"
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#include "lsp/lsp.h"
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#include "main.h"
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void handle_editor_event(Editor *editor, KeyEvent event) {
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static std::chrono::steady_clock::time_point last_click_time =
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std::chrono::steady_clock::now();
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static uint32_t click_count = 0;
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static Coord last_click_pos = {UINT32_MAX, UINT32_MAX};
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Coord start = editor->cursor;
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uint8_t old_mode = mode;
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if (editor->hover_active)
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editor->hover_active = false;
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if (event.key_type == KEY_MOUSE) {
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auto now = std::chrono::steady_clock::now();
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auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(
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now - last_click_time)
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.count();
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switch (event.mouse_state) {
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case SCROLL:
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switch (event.mouse_direction) {
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case SCROLL_UP:
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scroll_up(editor, 10);
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ensure_cursor(editor);
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break;
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case SCROLL_DOWN:
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scroll_down(editor, 10);
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ensure_cursor(editor);
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break;
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case SCROLL_LEFT:
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cursor_left(editor, 10);
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break;
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case SCROLL_RIGHT:
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cursor_right(editor, 10);
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break;
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}
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break;
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case PRESS:
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if (event.mouse_button == LEFT_BTN) {
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Coord cur_pos = {event.mouse_x, event.mouse_y};
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if (duration < 250 && last_click_pos == cur_pos)
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click_count++;
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else
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click_count = 1;
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last_click_time = now;
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last_click_pos = cur_pos;
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Coord p = editor_hit_test(editor, event.mouse_x, event.mouse_y);
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if (p.row == UINT32_MAX && p.col == UINT32_MAX)
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return;
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editor->cursor_preffered = UINT32_MAX;
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if (click_count == 1) {
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editor->cursor = p;
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editor->selection = p;
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if (mode == SELECT) {
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mode = NORMAL;
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editor->selection_active = false;
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}
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} else if (click_count == 2) {
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uint32_t prev_col, next_col;
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word_boundaries(editor, editor->cursor, &prev_col, &next_col, nullptr,
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nullptr);
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if (editor->cursor < editor->selection)
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editor->cursor = {editor->cursor.row, prev_col};
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else
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editor->cursor = {editor->cursor.row, next_col};
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editor->cursor_preffered = UINT32_MAX;
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editor->selection_type = WORD;
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mode = SELECT;
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editor->selection_active = true;
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} else if (click_count >= 3) {
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if (editor->cursor < editor->selection) {
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editor->cursor = {p.row, 0};
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} else {
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uint32_t line_len;
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LineIterator *it = begin_l_iter(editor->root, p.row);
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char *line = next_line(it, &line_len);
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if (!line)
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return;
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if (line_len > 0 && line[line_len - 1] == '\n')
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line_len--;
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free(it->buffer);
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free(it);
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editor->cursor = {p.row, line_len};
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}
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editor->cursor_preffered = UINT32_MAX;
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editor->selection_type = LINE;
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mode = SELECT;
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editor->selection_active = true;
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click_count = 3;
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}
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}
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break;
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case DRAG:
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if (event.mouse_button == LEFT_BTN) {
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Coord p = editor_hit_test(editor, event.mouse_x, event.mouse_y);
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if (p.row == UINT32_MAX && p.col == UINT32_MAX)
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return;
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editor->cursor_preffered = UINT32_MAX;
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mode = SELECT;
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if (!editor->selection_active) {
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editor->selection_active = true;
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editor->selection_type = CHAR;
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}
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uint32_t prev_col, next_col, line_len;
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switch (editor->selection_type) {
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case CHAR:
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editor->cursor = p;
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break;
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case WORD:
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word_boundaries(editor, p, &prev_col, &next_col, nullptr, nullptr);
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if (editor->cursor < editor->selection)
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editor->cursor = {p.row, prev_col};
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else
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editor->cursor = {p.row, next_col};
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break;
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case LINE:
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if (editor->cursor < editor->selection) {
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editor->cursor = {p.row, 0};
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} else {
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LineIterator *it = begin_l_iter(editor->root, p.row);
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char *line = next_line(it, &line_len);
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if (!line)
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return;
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if (line_len > 0 && line[line_len - 1] == '\n')
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line_len--;
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free(it->buffer);
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free(it);
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editor->cursor = {p.row, line_len};
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}
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break;
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}
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}
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break;
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case RELEASE:
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if (event.mouse_button == LEFT_BTN)
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if (editor->cursor.row == editor->selection.row &&
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editor->cursor.col == editor->selection.col) {
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mode = NORMAL;
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editor->selection_active = false;
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}
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break;
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}
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}
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if (event.key_type == KEY_SPECIAL) {
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switch (event.special_modifier) {
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case 0:
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switch (event.special_key) {
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case KEY_DOWN:
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cursor_down(editor, 1);
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break;
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case KEY_UP:
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cursor_up(editor, 1);
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break;
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case KEY_LEFT:
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cursor_left(editor, 1);
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break;
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case KEY_RIGHT:
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cursor_right(editor, 1);
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break;
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}
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break;
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case CNTRL:
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uint32_t prev_col, next_col;
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word_boundaries(editor, editor->cursor, &prev_col, &next_col, nullptr,
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nullptr);
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switch (event.special_key) {
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case KEY_DOWN:
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cursor_down(editor, 5);
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break;
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case KEY_UP:
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cursor_up(editor, 5);
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break;
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case KEY_LEFT:
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editor->cursor_preffered = UINT32_MAX;
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if (prev_col == editor->cursor.col)
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cursor_left(editor, 1);
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else
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editor->cursor = {editor->cursor.row, prev_col};
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break;
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case KEY_RIGHT:
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editor->cursor_preffered = UINT32_MAX;
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if (next_col == editor->cursor.col)
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cursor_right(editor, 1);
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else
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editor->cursor = {editor->cursor.row, next_col};
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break;
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}
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break;
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case ALT:
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switch (event.special_key) {
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case KEY_DOWN:
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move_line_down(editor);
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break;
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case KEY_UP:
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move_line_up(editor);
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break;
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case KEY_LEFT:
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cursor_left(editor, 8);
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break;
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case KEY_RIGHT:
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cursor_right(editor, 8);
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break;
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}
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break;
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}
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}
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switch (mode) {
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case NORMAL:
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if (event.key_type == KEY_CHAR && event.len == 1) {
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switch (event.c[0]) {
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case 'u':
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if (editor->root->line_count > 0) {
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editor->cursor.row = editor->root->line_count - 1;
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LineIterator *it = begin_l_iter(editor->root, editor->cursor.row);
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if (!it)
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break;
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uint32_t line_len;
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char *line = next_line(it, &line_len);
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if (!line)
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break;
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if (line_len > 0 && line[line_len - 1] == '\n')
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line_len--;
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line_len = count_clusters(line, line_len, 0, line_len);
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free(it->buffer);
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free(it);
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editor->cursor.col = line_len;
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editor->cursor_preffered = UINT32_MAX;
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mode = SELECT;
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editor->selection_active = true;
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editor->selection = {0, 0};
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editor->selection_type = LINE;
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}
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break;
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case CTRL('h'):
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editor->hover.scroll(-1);
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editor->hover_active = true;
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break;
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case CTRL('l'):
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editor->hover.scroll(1);
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editor->hover_active = true;
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break;
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case 'h':
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if (editor->lsp && editor->lsp->allow_hover) {
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LineIterator *it = begin_l_iter(editor->root, editor->cursor.row);
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char *line = next_line(it, nullptr);
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if (!line) {
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free(it->buffer);
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free(it);
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break;
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}
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uint32_t col = utf8_byte_offset_to_utf16(line, editor->cursor.col);
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free(it->buffer);
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free(it);
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json hover_request = {
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{"jsonrpc", "2.0"},
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{"method", "textDocument/hover"},
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{"params",
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{{"textDocument", {{"uri", editor->uri}}},
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{"position",
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{{"line", editor->cursor.row}, {"character", col}}}}}};
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LSPPending *pending = new LSPPending();
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pending->editor = editor;
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pending->method = "textDocument/hover";
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pending->callback = [](Editor *editor, std::string, json hover) {
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if (hover.contains("result") && !hover["result"].is_null()) {
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auto &contents = hover["result"]["contents"];
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std::string hover_text = "";
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bool is_markup = false;
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if (contents.is_object()) {
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hover_text += contents["value"].get<std::string>();
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is_markup = (contents["kind"].get<std::string>() == "markdown");
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} else if (contents.is_array()) {
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for (auto &block : contents) {
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if (block.is_string()) {
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hover_text += block.get<std::string>() + "\n";
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} else if (block.is_object() && block.contains("language") &&
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block.contains("value")) {
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std::string lang = block["language"].get<std::string>();
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std::string val = block["value"].get<std::string>();
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is_markup = true;
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hover_text += "```" + lang + "\n" + val + "\n```\n";
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}
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}
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} else if (contents.is_string()) {
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hover_text += contents.get<std::string>();
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}
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if (!hover_text.empty()) {
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editor->hover.clear();
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editor->hover.text = clean_text(hover_text);
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editor->hover.is_markup = is_markup;
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editor->hover.render_first();
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editor->hover_active = true;
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}
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}
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};
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lsp_send(editor->lsp, hover_request, pending);
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}
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break;
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case 'a':
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mode = INSERT;
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cursor_right(editor, 1);
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if (start.row != editor->cursor.row)
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cursor_left(editor, 1);
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break;
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case 'i':
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mode = INSERT;
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break;
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case 'n':
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mode = JUMPER;
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editor->jumper_set = true;
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break;
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case 'm':
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mode = JUMPER;
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editor->jumper_set = false;
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break;
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case 'N':
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for (uint8_t i = 0; i < 94; i++)
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if (editor->hooks[i] == editor->cursor.row + 1) {
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editor->hooks[i] = 0;
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break;
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}
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break;
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case 's':
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case 'v':
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mode = SELECT;
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editor->selection_active = true;
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editor->selection = editor->cursor;
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editor->selection_type = CHAR;
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break;
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case ';':
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case ':':
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mode = RUNNER;
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break;
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case 0x7F:
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cursor_left(editor, 1);
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break;
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case ' ':
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cursor_right(editor, 1);
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break;
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case '\r':
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case '\n':
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cursor_down(editor, 1);
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break;
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case '\\':
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case '|':
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cursor_up(editor, 1);
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break;
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case CTRL('d'):
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scroll_down(editor, 1);
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ensure_cursor(editor);
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break;
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case CTRL('u'):
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scroll_up(editor, 1);
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ensure_cursor(editor);
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break;
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case '>':
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case '.':
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indent_line(editor, editor->cursor.row);
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break;
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case '<':
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case ',':
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dedent_line(editor, editor->cursor.row);
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break;
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case CTRL('s'):
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save_file(editor);
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break;
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case 'p':
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uint32_t len;
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char *text = get_from_clipboard(&len);
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if (text) {
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edit_insert(editor, editor->cursor, text, len);
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uint32_t grapheme_len = count_clusters(text, len, 0, len);
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cursor_right(editor, grapheme_len);
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free(text);
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}
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break;
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}
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}
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break;
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case INSERT:
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if (event.key_type == KEY_CHAR) {
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if (event.len == 1) {
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if (event.c[0] == '\t') {
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edit_insert(editor, editor->cursor, (char *)" ", 2);
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cursor_right(editor, 2);
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} else if (event.c[0] == '\n' || event.c[0] == '\r') {
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uint32_t line_len = 0;
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LineIterator *it = begin_l_iter(editor->root, editor->cursor.row);
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char *line = next_line(it, &line_len);
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bool closing = false;
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if (line && line_len > 0 && line[line_len - 1] == '\n')
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line_len--;
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uint32_t indent = get_indent(editor, editor->cursor);
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if (line) {
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if (indent == 0)
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indent = leading_indent(line, line_len);
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closing = closing_after_cursor(line, line_len, editor->cursor.col);
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}
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free(it->buffer);
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free(it);
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uint32_t closing_indent =
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indent >= INDENT_WIDTH ? indent - INDENT_WIDTH : 0;
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std::string insert_text("\n");
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insert_text.append(indent, ' ');
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Coord new_cursor = {editor->cursor.row + 1, indent};
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if (closing) {
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insert_text.push_back('\n');
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insert_text.append(closing_indent, ' ');
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}
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edit_insert(editor, editor->cursor, insert_text.data(),
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insert_text.size());
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editor->cursor = new_cursor;
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editor->cursor_preffered = UINT32_MAX;
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} else if (event.c[0] == CTRL('W')) {
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uint32_t prev_col_byte, prev_col_cluster;
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word_boundaries(editor, editor->cursor, &prev_col_byte, nullptr,
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&prev_col_cluster, nullptr);
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if (prev_col_byte == editor->cursor.col)
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edit_erase(editor, editor->cursor, -1);
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else
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edit_erase(editor, editor->cursor, -(int64_t)prev_col_cluster);
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} else if (isprint((unsigned char)(event.c[0]))) {
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char c = event.c[0];
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uint32_t col = editor->cursor.col;
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LineIterator *it = begin_l_iter(editor->root, editor->cursor.row);
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uint32_t len;
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char *line = next_line(it, &len);
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bool skip_insert = false;
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if (line && col < len) {
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char next = line[col];
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if ((c == '}' && next == '}') || (c == ')' && next == ')') ||
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(c == ']' && next == ']') || (c == '"' && next == '"') ||
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(c == '\'' && next == '\'')) {
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cursor_right(editor, 1);
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skip_insert = true;
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}
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}
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free(it->buffer);
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free(it);
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if (!skip_insert) {
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char closing = 0;
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switch (c) {
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case '{':
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closing = '}';
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break;
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case '(':
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closing = ')';
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break;
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case '[':
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closing = ']';
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break;
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case '"':
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closing = '"';
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break;
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case '\'':
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closing = '\'';
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break;
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}
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if (closing) {
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char pair[2] = {c, closing};
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edit_insert(editor, editor->cursor, pair, 2);
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cursor_right(editor, 1);
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} else {
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edit_insert(editor, editor->cursor, &c, 1);
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cursor_right(editor, 1);
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}
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}
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} else if (event.c[0] == 0x7F || event.c[0] == 0x08) {
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Coord prev_pos = editor->cursor;
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if (prev_pos.col > 0)
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prev_pos.col--;
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LineIterator *it = begin_l_iter(editor->root, editor->cursor.row);
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if (!it)
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return;
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char *line = next_line(it, nullptr);
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char prev_char = line[prev_pos.col];
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char next_char = line[editor->cursor.col];
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free(it->buffer);
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free(it);
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bool is_pair = (prev_char == '{' && next_char == '}') ||
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(prev_char == '(' && next_char == ')') ||
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(prev_char == '[' && next_char == ']') ||
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(prev_char == '"' && next_char == '"') ||
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(prev_char == '\'' && next_char == '\'');
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if (is_pair) {
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edit_erase(editor, editor->cursor, 1);
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edit_erase(editor, prev_pos, 1);
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} else {
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edit_erase(editor, editor->cursor, -1);
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}
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} else if (event.c[0] == 0x1B) {
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Coord prev_pos = editor->cursor;
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mode = NORMAL;
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cursor_left(editor, 1);
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if (prev_pos.row != editor->cursor.row)
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cursor_right(editor, 1);
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}
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} else if (event.len > 1) {
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edit_insert(editor, editor->cursor, event.c, event.len);
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cursor_right(editor, 1);
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}
|
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} else if (event.key_type == KEY_SPECIAL &&
|
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event.special_key == KEY_DELETE) {
|
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switch (event.special_modifier) {
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case 0:
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edit_erase(editor, editor->cursor, 1);
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break;
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case CNTRL:
|
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uint32_t next_col_byte, next_col_cluster;
|
|
word_boundaries(editor, editor->cursor, nullptr, &next_col_byte,
|
|
nullptr, &next_col_cluster);
|
|
if (next_col_byte == editor->cursor.col)
|
|
edit_erase(editor, editor->cursor, 1);
|
|
else
|
|
edit_erase(editor, editor->cursor, next_col_cluster);
|
|
break;
|
|
}
|
|
} else if (event.key_type == KEY_PASTE) {
|
|
if (event.c) {
|
|
edit_insert(editor, editor->cursor, event.c, event.len);
|
|
uint32_t grapheme_len =
|
|
count_clusters(event.c, event.len, 0, event.len);
|
|
cursor_right(editor, grapheme_len);
|
|
}
|
|
}
|
|
break;
|
|
case SELECT:
|
|
if (event.key_type == KEY_CHAR && event.len == 1) {
|
|
uint32_t len;
|
|
char *text;
|
|
Coord start;
|
|
switch (event.c[0]) {
|
|
case 'f':
|
|
if (editor->cursor.row != editor->selection.row) {
|
|
uint32_t start = MIN(editor->cursor.row, editor->selection.row);
|
|
uint32_t end = MAX(editor->cursor.row, editor->selection.row);
|
|
add_fold(editor, start, end);
|
|
}
|
|
cursor_left(editor, 1);
|
|
cursor_down(editor, 1);
|
|
editor->selection_active = false;
|
|
mode = NORMAL;
|
|
break;
|
|
case 0x1B:
|
|
case 's':
|
|
case 'v':
|
|
editor->selection_active = false;
|
|
mode = NORMAL;
|
|
break;
|
|
case 'y':
|
|
text = get_selection(editor, &len, nullptr);
|
|
copy_to_clipboard(text, len);
|
|
free(text);
|
|
editor->selection_active = false;
|
|
mode = NORMAL;
|
|
break;
|
|
case 'x':
|
|
text = get_selection(editor, &len, &start);
|
|
copy_to_clipboard(text, len);
|
|
len = count_clusters(text, len, 0, len);
|
|
edit_erase(editor, start, len);
|
|
free(text);
|
|
editor->selection_active = false;
|
|
mode = NORMAL;
|
|
break;
|
|
case 'p':
|
|
text = get_from_clipboard(&len);
|
|
if (text) {
|
|
Coord start, end;
|
|
if (editor->cursor >= editor->selection) {
|
|
start = editor->selection;
|
|
end = move_right(editor, editor->cursor, 1);
|
|
} else {
|
|
start = editor->cursor;
|
|
end = move_right(editor, editor->selection, 1);
|
|
}
|
|
uint32_t start_byte =
|
|
line_to_byte(editor->root, start.row, nullptr) + start.col;
|
|
uint32_t end_byte =
|
|
line_to_byte(editor->root, end.row, nullptr) + end.col;
|
|
edit_erase(editor, start, end_byte - start_byte);
|
|
edit_insert(editor, editor->cursor, text, len);
|
|
free(text);
|
|
}
|
|
editor->selection_active = false;
|
|
mode = NORMAL;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case JUMPER:
|
|
if (event.key_type == KEY_CHAR && event.len == 1 &&
|
|
(event.c[0] >= '!' && event.c[0] <= '~')) {
|
|
if (editor->jumper_set) {
|
|
for (uint8_t i = 0; i < 94; i++)
|
|
if (editor->hooks[i] == editor->cursor.row + 1) {
|
|
editor->hooks[i] = 0;
|
|
break;
|
|
}
|
|
editor->hooks[event.c[0] - '!'] = editor->cursor.row + 1;
|
|
} else {
|
|
uint32_t line = editor->hooks[event.c[0] - '!'];
|
|
if (line > 0) {
|
|
if (line_is_folded(editor->folds, --line))
|
|
break;
|
|
editor->cursor = {line, 0};
|
|
editor->cursor_preffered = UINT32_MAX;
|
|
}
|
|
}
|
|
}
|
|
mode = NORMAL;
|
|
break;
|
|
}
|
|
ensure_scroll(editor);
|
|
if (old_mode == mode || mode != INSERT)
|
|
handle_completion(editor, event);
|
|
if ((event.key_type == KEY_CHAR || event.key_type == KEY_PASTE) && event.c)
|
|
free(event.c);
|
|
}
|