* @license MIT
*/
+import * as Mouse from './utils/Mouse';
+import * as Browser from './utils/Browser';
import { CharMeasure } from './utils/CharMeasure';
import { CircularList } from './utils/CircularList';
import { EventEmitter } from './EventEmitter';
-import * as Mouse from './utils/Mouse';
import { ITerminal } from './Interfaces';
+import { SelectionModel } from './SelectionModel';
+import { translateBufferLineToString } from './utils/BufferLine';
/**
* The number of pixels the mouse needs to be above or below the viewport in
* order to scroll at the maximum speed.
*/
-const DRAG_SCROLL_MAX_THRESHOLD = 100;
+const DRAG_SCROLL_MAX_THRESHOLD = 50;
/**
* The maximum scrolling speed
*/
-const DRAG_SCROLL_MAX_SPEED = 5;
+const DRAG_SCROLL_MAX_SPEED = 15;
/**
* The number of milliseconds between drag scroll updates.
*/
-const DRAG_SCROLL_INTERVAL = 100;
+const DRAG_SCROLL_INTERVAL = 50;
/**
- * The amount of time before mousedown events are no stacked to create double
- * click events.
+ * A string containing all characters that are considered word separated by the
+ * double click to select work logic.
*/
-const CLEAR_MOUSE_DOWN_TIME = 400;
+const WORD_SEPARATORS = ' ()[]{}\'"';
-export class SelectionManager extends EventEmitter {
- // TODO: Create a SelectionModel
+// TODO: Move these constants elsewhere, they belong in a buffer or buffer
+// data/line class.
+const LINE_DATA_CHAR_INDEX = 1;
+const LINE_DATA_WIDTH_INDEX = 2;
- /**
- * Whether select all is currently active.
- */
- private _isSelectAllActive: boolean;
+const NON_BREAKING_SPACE_CHAR = String.fromCharCode(160);
+const ALL_NON_BREAKING_SPACE_REGEX = new RegExp(NON_BREAKING_SPACE_CHAR, 'g');
- /**
- * The [x, y] position the selection starts at.
- */
- private _selectionStart: [number, number];
+/**
+ * Represents a position of a word on a line.
+ */
+interface IWordPosition {
+ start: number;
+ length: number;
+}
- /**
- * The minimal length of the selection from the start position. When double
- * clicking on a word, the word will be selected which makes the selection
- * start at the start of the word and makes this variable the length.
- */
- private _selectionStartLength: number;
+/**
+ * A selection mode, this drives how the selection behaves on mouse move.
+ */
+enum SelectionMode {
+ NORMAL,
+ WORD,
+ LINE
+}
- /**
- * The [x, y] position the selection ends at.
- */
- private _selectionEnd: [number, number];
+/**
+ * A class that manages the selection of the terminal. With help from
+ * SelectionModel, SelectionManager handles with all logic associated with
+ * dealing with the selection, including handling mouse interaction, wide
+ * characters and fetching the actual text within the selection. Rendering is
+ * not handled by the SelectionManager but a 'refresh' event is fired when the
+ * selection is ready to be redrawn.
+ */
+export class SelectionManager extends EventEmitter {
+ protected _model: SelectionModel;
/**
* The amount to scroll every drag scroll update (depends on how far the mouse
private _dragScrollAmount: number;
/**
- * The last time the mousedown event fired, this is used to track double and
- * triple clicks.
+ * The current selection mode.
*/
- private _lastMouseDownTime: number;
+ private _activeSelectionMode: SelectionMode;
- private _clickCount: number;
+ /**
+ * A setInterval timer that is active while the mouse is down whose callback
+ * scrolls the viewport when necessary.
+ */
+ private _dragScrollIntervalTimer: NodeJS.Timer;
+
+ /**
+ * The animation frame ID used for refreshing the selection.
+ */
+ private _refreshAnimationFrame: number;
private _bufferTrimListener: any;
private _mouseMoveListener: EventListener;
private _mouseDownListener: EventListener;
private _mouseUpListener: EventListener;
- private _dragScrollTimeout: NodeJS.Timer;
-
constructor(
private _terminal: ITerminal,
private _buffer: CircularList<any>,
private _rowContainer: HTMLElement,
- private _selectionContainer: HTMLElement,
private _charMeasure: CharMeasure
) {
super();
this._initListeners();
this.enable();
- this._lastMouseDownTime = 0;
+ this._model = new SelectionModel(_terminal);
+ this._activeSelectionMode = SelectionMode.NORMAL;
}
+ /**
+ * Initializes listener variables.
+ */
private _initListeners() {
this._bufferTrimListener = (amount: number) => this._onTrim(amount);
this._mouseMoveListener = event => this._onMouseMove(<MouseEvent>event);
* are enabled.
*/
public disable() {
- this._selectionStart = null;
- this._selectionEnd = null;
- this.refresh();
+ this.clearSelection();
this._buffer.off('trim', this._bufferTrimListener);
this._rowContainer.removeEventListener('mousedown', this._mouseDownListener);
- this._rowContainer.ownerDocument.removeEventListener('mousemove', this._mouseMoveListener);
- this._rowContainer.ownerDocument.removeEventListener('mouseup', this._mouseUpListener);
- clearInterval(this._dragScrollTimeout);
}
/**
* Enable the selection manager.
*/
public enable() {
+ // Only adjust the selection on trim, shiftElements is rarely used (only in
+ // reverseIndex) and delete in a splice is only ever used when the same
+ // number of elements was just added. Given this is could actually be
+ // beneficial to leave the selection as is for these cases.
this._buffer.on('trim', this._bufferTrimListener);
this._rowContainer.addEventListener('mousedown', this._mouseDownListener);
}
+ /**
+ * Sets the active buffer, this should be called when the alt buffer is
+ * switched in or out.
+ * @param buffer The active buffer.
+ */
+ public setBuffer(buffer: CircularList<any>): void {
+ this._buffer = buffer;
+ this.clearSelection();
+ }
+
+ public get selectionStart(): [number, number] { return this._model.finalSelectionStart; }
+ public get selectionEnd(): [number, number] { return this._model.finalSelectionEnd; }
+
+ /**
+ * Gets whether there is an active text selection.
+ */
+ public get hasSelection(): boolean {
+ const start = this._model.finalSelectionStart;
+ const end = this._model.finalSelectionEnd;
+ if (!start || !end) {
+ return false;
+ }
+ return start[0] !== end[0] || start[1] !== end[1];
+ }
+
/**
* Gets the text currently selected.
*/
public get selectionText(): string {
- const start = this.finalSelectionStart;
- const end = this.finalSelectionEnd;
+ const start = this._model.finalSelectionStart;
+ const end = this._model.finalSelectionEnd;
if (!start || !end) {
return '';
}
// Get first row
const startRowEndCol = start[1] === end[1] ? end[0] : null;
let result: string[] = [];
- result.push(this._translateBufferLineToString(this._buffer.get(start[1]), start[0], startRowEndCol));
+ result.push(translateBufferLineToString(this._buffer.get(start[1]), true, start[0], startRowEndCol));
// Get middle rows
for (let i = start[1] + 1; i <= end[1] - 1; i++) {
- result.push(this._translateBufferLineToString(this._buffer.get(i)));
+ const bufferLine = this._buffer.get(i);
+ const lineText = translateBufferLineToString(bufferLine, true);
+ if (bufferLine.isWrapped) {
+ result[result.length - 1] += lineText;
+ } else {
+ result.push(lineText);
+ }
}
// Get final row
if (start[1] !== end[1]) {
- result.push(this._translateBufferLineToString(this._buffer.get(end[1]), 0, end[1]));
+ const bufferLine = this._buffer.get(end[1]);
+ const lineText = translateBufferLineToString(bufferLine, true, 0, end[0]);
+ if (bufferLine.isWrapped) {
+ result[result.length - 1] += lineText;
+ } else {
+ result.push(lineText);
+ }
}
- console.log('selectionText result: ' + result);
- return result.join('\n');
- }
- private _translateBufferLineToString(line: any, startCol: number = 0, endCol: number = null): string {
- // TODO: This function should live in a buffer or buffer line class
- endCol = endCol || line.length;
- let result = '';
- for (let i = startCol; i < endCol; i++) {
- result += line[i][1];
- }
- // TODO: Trim line here instead of in handlers/Clipboard?
- // TODO: Only trim off the whitespace at the end of a line
- // TODO: Handle the double-width character case
- return result;
+ // Format string by replacing non-breaking space chars with regular spaces
+ // and joining the array into a multi-line string.
+ const formattedResult = result.map(line => {
+ return line.replace(ALL_NON_BREAKING_SPACE_REGEX, ' ');
+ }).join(Browser.isMSWindows ? '\r\n' : '\n');
+
+ return formattedResult;
}
/**
- * The final selection start, taking into consideration select all.
+ * Clears the current terminal selection.
*/
- private get finalSelectionStart(): [number, number] {
- if (this._isSelectAllActive) {
- return [0, 0];
- }
-
- if (!this._selectionEnd) {
- return this._selectionStart;
- }
-
- return this._areSelectionValuesReversed() ? this._selectionEnd : this._selectionStart;
+ public clearSelection(): void {
+ this._model.clearSelection();
+ this._removeMouseDownListeners();
+ this.refresh();
}
/**
- * The final selection end, taking into consideration select all, double click
- * word selection and triple click line selection.
+ * Queues a refresh, redrawing the selection on the next opportunity.
+ * @param isNewSelection Whether the selection should be registered as a new
+ * selection on Linux.
*/
- private get finalSelectionEnd(): [number, number] {
- if (this._isSelectAllActive) {
- return [this._terminal.cols - 1, this._terminal.ydisp + this._terminal.rows - 1];
+ public refresh(isNewSelection?: boolean): void {
+ // Queue the refresh for the renderer
+ if (!this._refreshAnimationFrame) {
+ this._refreshAnimationFrame = window.requestAnimationFrame(() => this._refresh());
}
- // Ensure the the word/line is selected after a double/triple click
- if (this._selectionStartLength) {
- // Select just the word/line if there is no selection end yet or it's above the line
- if (!this._selectionEnd || this._areSelectionValuesReversed()) {
- return [this._selectionStart[0] + this._selectionStartLength, this._selectionStart[1]];
- }
- // Select the larger of the two when start and end are on the same line
- if (this._selectionEnd[1] === this._selectionStart[1]) {
- return [Math.max(this._selectionStart[0] + this._selectionStartLength, this._selectionEnd[0]), this._selectionEnd[1]];
+ // If the platform is Linux and the refresh call comes from a mouse event,
+ // we need to update the selection for middle click to paste selection.
+ if (Browser.isLinux && isNewSelection) {
+ const selectionText = this.selectionText;
+ if (selectionText.length) {
+ this.emit('newselection', this.selectionText);
}
}
- return this._selectionEnd;
- }
-
- /**
- * Returns whether the selection start and end are reversed.
- */
- private _areSelectionValuesReversed(): boolean {
- const start = this._selectionStart;
- const end = this._selectionEnd;
- return start[1] > end[1] || (start[1] === end[1] && start[0] > end[0]);
}
/**
- * Redraws the selection.
+ * Fires the refresh event, causing consumers to pick it up and redraw the
+ * selection state.
*/
- public refresh(): void {
- // TODO: Figure out when to refresh the selection vs when to refresh the viewport
- this.emit('refresh', { start: this.finalSelectionStart, end: this.finalSelectionEnd });
+ private _refresh(): void {
+ this._refreshAnimationFrame = null;
+ this.emit('refresh', { start: this._model.finalSelectionStart, end: this._model.finalSelectionEnd });
}
/**
* Selects all text within the terminal.
*/
public selectAll(): void {
- this._isSelectAllActive = true;
+ this._model.isSelectAllActive = true;
this.refresh();
}
* @param amount The amount the buffer is being trimmed.
*/
private _onTrim(amount: number) {
- // Adjust the selection position based on the trimmed amount.
- if (this._selectionStart) {
- this._selectionStart[0] -= amount;
- }
- if (this._selectionEnd) {
- this._selectionEnd[0] -= amount;
- }
-
- // The selection has moved off the buffer, clear it.
- if (this._selectionEnd && this._selectionEnd[0] < 0) {
- this._selectionStart = null;
- this._selectionEnd = null;
+ const needsRefresh = this._model.onTrim(amount);
+ if (needsRefresh) {
this.refresh();
- return;
- }
-
- // If the selection start is trimmed, ensure the start column is 0.
- if (this._selectionStart && this._selectionStart[0] < 0) {
- this._selectionStart[1] = 0;
}
}
- // TODO: Handle splice/shiftElements in the buffer (just clear the selection?)
-
+ /**
+ * Gets the 0-based [x, y] buffer coordinates of the current mouse event.
+ * @param event The mouse event.
+ */
private _getMouseBufferCoords(event: MouseEvent): [number, number] {
- const coords = Mouse.getCoords(event, this._rowContainer, this._charMeasure, this._terminal.cols, this._terminal.rows);
- console.log(coords);
+ const coords = Mouse.getCoords(event, this._rowContainer, this._charMeasure, this._terminal.cols, this._terminal.rows, true);
// Convert to 0-based
coords[0]--;
coords[1]--;
return coords;
}
+ /**
+ * Gets the amount the viewport should be scrolled based on how far out of the
+ * terminal the mouse is.
+ * @param event The mouse event.
+ */
private _getMouseEventScrollAmount(event: MouseEvent): number {
let offset = Mouse.getCoordsRelativeToElement(event, this._rowContainer)[1];
const terminalHeight = this._terminal.rows * this._charMeasure.height;
* @param event The mousedown event.
*/
private _onMouseDown(event: MouseEvent) {
- // TODO: On right click move the text into the textbox so it can be copied via the context menu
-
// Only action the primary button
if (event.button !== 0) {
return;
}
- this._setMouseClickCount();
- console.log(this._clickCount);
+ // Tell the browser not to start a regular selection
+ event.preventDefault();
- if (this._clickCount === 1) {
- this._onSingleClick(event);
- } else if (this._clickCount === 2) {
- this._onDoubleClick(event);
- } else if (this._clickCount === 3) {
- this._onTripleClick(event);
+ // Reset drag scroll state
+ this._dragScrollAmount = 0;
+
+ if (event.shiftKey) {
+ this._onShiftClick(event);
+ } else {
+ if (event.detail === 1) {
+ this._onSingleClick(event);
+ } else if (event.detail === 2) {
+ this._onDoubleClick(event);
+ } else if (event.detail === 3) {
+ this._onTripleClick(event);
+ }
}
+ this._addMouseDownListeners();
+ this.refresh(true);
+ }
+
+ /**
+ * Adds listeners when mousedown is triggered.
+ */
+ private _addMouseDownListeners(): void {
// Listen on the document so that dragging outside of viewport works
this._rowContainer.ownerDocument.addEventListener('mousemove', this._mouseMoveListener);
this._rowContainer.ownerDocument.addEventListener('mouseup', this._mouseUpListener);
- this._dragScrollTimeout = setInterval(() => this._dragScroll(), DRAG_SCROLL_INTERVAL);
- this.refresh();
+ this._dragScrollIntervalTimer = setInterval(() => this._dragScroll(), DRAG_SCROLL_INTERVAL);
+ }
+
+ /**
+ * Removes the listeners that are registered when mousedown is triggered.
+ */
+ private _removeMouseDownListeners(): void {
+ this._rowContainer.ownerDocument.removeEventListener('mousemove', this._mouseMoveListener);
+ this._rowContainer.ownerDocument.removeEventListener('mouseup', this._mouseUpListener);
+ clearInterval(this._dragScrollIntervalTimer);
+ this._dragScrollIntervalTimer = null;
}
+ /**
+ * Performs a shift click, setting the selection end position to the mouse
+ * position.
+ * @param event The mouse event.
+ */
+ private _onShiftClick(event: MouseEvent): void {
+ if (this._model.selectionStart) {
+ this._model.selectionEnd = this._getMouseBufferCoords(event);
+ }
+ }
+
+ /**
+ * Performs a single click, resetting relevant state and setting the selection
+ * start position.
+ * @param event The mouse event.
+ */
private _onSingleClick(event: MouseEvent): void {
- this._selectionStartLength = 0;
- this._isSelectAllActive = false;
- this._selectionStart = this._getMouseBufferCoords(event);
- if (this._selectionStart) {
- this._selectionEnd = null;
+ this._model.selectionStartLength = 0;
+ this._model.isSelectAllActive = false;
+ this._activeSelectionMode = SelectionMode.NORMAL;
+ this._model.selectionStart = this._getMouseBufferCoords(event);
+ if (this._model.selectionStart) {
+ this._model.selectionEnd = null;
+ // If the mouse is over the second half of a wide character, adjust the
+ // selection to cover the whole character
+ const char = this._buffer.get(this._model.selectionStart[1])[this._model.selectionStart[0]];
+ if (char[LINE_DATA_WIDTH_INDEX] === 0) {
+ this._model.selectionStart[0]++;
+ }
}
}
+ /**
+ * Performs a double click, selecting the current work.
+ * @param event The mouse event.
+ */
private _onDoubleClick(event: MouseEvent): void {
const coords = this._getMouseBufferCoords(event);
if (coords) {
+ this._activeSelectionMode = SelectionMode.WORD;
this._selectWordAt(coords);
}
}
+ /**
+ * Performs a triple click, selecting the current line and activating line
+ * select mode.
+ * @param event The mouse event.
+ */
private _onTripleClick(event: MouseEvent): void {
const coords = this._getMouseBufferCoords(event);
if (coords) {
+ this._activeSelectionMode = SelectionMode.LINE;
this._selectLineAt(coords[1]);
}
}
- private _setMouseClickCount(): void {
- let currentTime = (new Date()).getTime();
- if (currentTime - this._lastMouseDownTime > CLEAR_MOUSE_DOWN_TIME) {
- this._clickCount = 0;
- }
- this._lastMouseDownTime = currentTime;
- this._clickCount++;
-
- // TODO: Invalidate click count if the position is different
- }
-
/**
* Handles the mousemove event when the mouse button is down, recording the
* end of the selection and refreshing the selection.
* @param event The mousemove event.
*/
private _onMouseMove(event: MouseEvent) {
- this._selectionEnd = this._getMouseBufferCoords(event);
- // TODO: Perhaps the actual selection setting could be merged into _dragScroll?
+ // Record the previous position so we know whether to redraw the selection
+ // at the end.
+ const previousSelectionEnd = this._model.selectionEnd ? [this._model.selectionEnd[0], this._model.selectionEnd[1]] : null;
+
+ // Set the initial selection end based on the mouse coordinates
+ this._model.selectionEnd = this._getMouseBufferCoords(event);
+
+ // Select the entire line if line select mode is active.
+ if (this._activeSelectionMode === SelectionMode.LINE) {
+ if (this._model.selectionEnd[1] < this._model.selectionStart[1]) {
+ this._model.selectionEnd[0] = 0;
+ } else {
+ this._model.selectionEnd[0] = this._terminal.cols;
+ }
+ } else if (this._activeSelectionMode === SelectionMode.WORD) {
+ this._selectToWordAt(this._model.selectionEnd);
+ }
+
+ // Determine the amount of scrolling that will happen.
this._dragScrollAmount = this._getMouseEventScrollAmount(event);
+
// If the cursor was above or below the viewport, make sure it's at the
- // start or end of the viewport respectively
+ // start or end of the viewport respectively.
if (this._dragScrollAmount > 0) {
- this._selectionEnd[0] = this._terminal.cols - 1;
+ this._model.selectionEnd[0] = this._terminal.cols - 1;
} else if (this._dragScrollAmount < 0) {
- this._selectionEnd[0] = 0;
+ this._model.selectionEnd[0] = 0;
+ }
+
+ // If the character is a wide character include the cell to the right in the
+ // selection. Note that selections at the very end of the line will never
+ // have a character.
+ if (this._model.selectionEnd[1] < this._buffer.length) {
+ const char = this._buffer.get(this._model.selectionEnd[1])[this._model.selectionEnd[0]];
+ if (char && char[2] === 0) {
+ this._model.selectionEnd[0]++;
+ }
+ }
+
+ // Only draw here if the selection changes.
+ if (!previousSelectionEnd ||
+ previousSelectionEnd[0] !== this._model.selectionEnd[0] ||
+ previousSelectionEnd[1] !== this._model.selectionEnd[1]) {
+ this.refresh(true);
}
- // TODO: Only draw here if the selection changes
- this.refresh();
}
+ /**
+ * The callback that occurs every DRAG_SCROLL_INTERVAL ms that does the
+ * scrolling of the viewport.
+ */
private _dragScroll() {
if (this._dragScrollAmount) {
this._terminal.scrollDisp(this._dragScrollAmount, false);
// Re-evaluate selection
if (this._dragScrollAmount > 0) {
- this._selectionEnd = [this._terminal.cols - 1, this._terminal.ydisp + this._terminal.rows];
+ this._model.selectionEnd = [this._terminal.cols - 1, this._terminal.ydisp + this._terminal.rows];
} else {
- this._selectionEnd = [0, this._terminal.ydisp];
+ this._model.selectionEnd = [0, this._terminal.ydisp];
}
this.refresh();
}
}
/**
- * Handles the mouseup event, removing the mousemove listener when
- * appropriate.
+ * Handles the mouseup event, removing the mousedown listeners.
* @param event The mouseup event.
*/
private _onMouseUp(event: MouseEvent) {
- this._dragScrollAmount = 0;
- if (!this._selectionStart) {
- return;
+ this._removeMouseDownListeners();
+ }
+
+ /**
+ * Converts a viewport column to the character index on the buffer line, the
+ * latter takes into account wide characters.
+ * @param coords The coordinates to find the 2 index for.
+ */
+ private _convertViewportColToCharacterIndex(bufferLine: any, coords: [number, number]): number {
+ let charIndex = coords[0];
+ for (let i = 0; coords[0] >= i; i++) {
+ const char = bufferLine[i];
+ if (char[LINE_DATA_WIDTH_INDEX] === 0) {
+ charIndex--;
+ }
}
- this._rowContainer.ownerDocument.removeEventListener('mousemove', this._mouseMoveListener);
- this._rowContainer.ownerDocument.removeEventListener('mouseup', this._mouseUpListener);
+ return charIndex;
+ }
+
+ public setSelection(col: number, row: number, length: number): void {
+ this._model.clearSelection();
+ this._removeMouseDownListeners();
+ this._model.selectionStart = [col, row];
+ this._model.selectionStartLength = length;
+ this.refresh();
}
/**
- * Selects the word at the coordinates specified. Words are defined as all
- * non-whitespace characters.
+ * Gets positional information for the word at the coordinated specified.
* @param coords The coordinates to get the word at.
*/
- private _selectWordAt(coords: [number, number]): void {
- // TODO: Handle double click and drag in both directions!
-
- const line = this._translateBufferLineToString(this._buffer.get(coords[1]));
- // Expand the string in both directions until a space is hit
- let startCol = coords[0];
- let endCol = coords[0];
- while (startCol > 0 && line.charAt(startCol - 1) !== ' ') {
- startCol--;
- }
- while (endCol < line.length && line.charAt(endCol) !== ' ') {
- endCol++;
+ private _getWordAt(coords: [number, number]): IWordPosition {
+ const bufferLine = this._buffer.get(coords[1]);
+ const line = translateBufferLineToString(bufferLine, false);
+
+ // Get actual index, taking into consideration wide characters
+ let endIndex = this._convertViewportColToCharacterIndex(bufferLine, coords);
+ let startIndex = endIndex;
+
+ // Record offset to be used later
+ const charOffset = coords[0] - startIndex;
+ let leftWideCharCount = 0;
+ let rightWideCharCount = 0;
+
+ if (line.charAt(startIndex) === ' ') {
+ // Expand until non-whitespace is hit
+ while (startIndex > 0 && line.charAt(startIndex - 1) === ' ') {
+ startIndex--;
+ }
+ while (endIndex < line.length && line.charAt(endIndex + 1) === ' ') {
+ endIndex++;
+ }
+ } else {
+ // Expand until whitespace is hit. This algorithm works by scanning left
+ // and right from the starting position, keeping both the index format
+ // (line) and the column format (bufferLine) in sync. When a wide
+ // character is hit, it is recorded and the column index is adjusted.
+ let startCol = coords[0];
+ let endCol = coords[0];
+ // Consider the initial position, skip it and increment the wide char
+ // variable
+ if (bufferLine[startCol][LINE_DATA_WIDTH_INDEX] === 0) {
+ leftWideCharCount++;
+ startCol--;
+ }
+ if (bufferLine[endCol][LINE_DATA_WIDTH_INDEX] === 2) {
+ rightWideCharCount++;
+ endCol++;
+ }
+ // Expand the string in both directions until a space is hit
+ while (startIndex > 0 && !this._isCharWordSeparator(line.charAt(startIndex - 1))) {
+ if (bufferLine[startCol - 1][LINE_DATA_WIDTH_INDEX] === 0) {
+ // If the next character is a wide char, record it and skip the column
+ leftWideCharCount++;
+ startCol--;
+ }
+ startIndex--;
+ startCol--;
+ }
+ while (endIndex + 1 < line.length && !this._isCharWordSeparator(line.charAt(endIndex + 1))) {
+ if (bufferLine[endCol + 1][LINE_DATA_WIDTH_INDEX] === 2) {
+ // If the next character is a wide char, record it and skip the column
+ rightWideCharCount++;
+ endCol++;
+ }
+ endIndex++;
+ endCol++;
+ }
}
- this._selectionStart = [startCol, coords[1]];
- this._selectionStartLength = endCol - startCol;
+
+ const start = startIndex + charOffset - leftWideCharCount;
+ const length = Math.min(endIndex - startIndex + leftWideCharCount + rightWideCharCount + 1/*include endIndex char*/, this._terminal.cols);
+ return {start, length};
+ }
+
+ /**
+ * Selects the word at the coordinates specified.
+ * @param coords The coordinates to get the word at.
+ */
+ protected _selectWordAt(coords: [number, number]): void {
+ const wordPosition = this._getWordAt(coords);
+ this._model.selectionStart = [wordPosition.start, coords[1]];
+ this._model.selectionStartLength = wordPosition.length;
}
- private _selectLineAt(line: number): void {
- this._selectionStart = [0, line];
- this._selectionStartLength = this._terminal.cols;
+ /**
+ * Sets the selection end to the word at the coordinated specified.
+ * @param coords The coordinates to get the word at.
+ */
+ private _selectToWordAt(coords: [number, number]): void {
+ const wordPosition = this._getWordAt(coords);
+ this._model.selectionEnd = [this._model.areSelectionValuesReversed() ? wordPosition.start : (wordPosition.start + wordPosition.length), coords[1]];
+ }
+
+ /**
+ * Gets whether the character is considered a word separator by the select
+ * word logic.
+ * @param char The character to check.
+ */
+ private _isCharWordSeparator(char: string): boolean {
+ return WORD_SEPARATORS.indexOf(char) >= 0;
+ }
+
+ /**
+ * Selects the line specified.
+ * @param line The line index.
+ */
+ protected _selectLineAt(line: number): void {
+ this._model.selectionStart = [0, line];
+ this._model.selectionStartLength = this._terminal.cols;
}
}
projects / mirror_xterm.js.git / blobdiff