* @license MIT
*/
+import { BufferSet } from './BufferSet';
import { CompositionHelper } from './CompositionHelper';
import { EventEmitter } from './EventEmitter';
import { Viewport } from './Viewport';
this.on('data', options.handler);
}
- /**
- * The scroll position of the y cursor, ie. ybase + y = the y position within the entire
- * buffer
- */
- this.ybase = 0;
-
- /**
- * The scroll position of the viewport
- */
- this.ydisp = 0;
-
- /**
- * The cursor's x position after ybase
- */
- this.x = 0;
-
- /**
- * The cursor's y position after ybase
- */
- this.y = 0;
-
this.cursorState = 0;
this.cursorHidden = false;
this.convertEol;
this.queue = '';
- this.scrollTop = 0;
- this.scrollBottom = this.rows - 1;
this.customKeyEventHandler = null;
this.cursorBlinkInterval = null;
this.originMode = false;
this.insertMode = false;
this.wraparoundMode = true; // defaults: xterm - true, vt100 - false
- this.normal = null;
// charset
this.charset = null;
// leftover surrogate high from previous write invocation
this.surrogate_high = '';
- /**
- * An array of all lines in the entire buffer, including the prompt. The lines are array of
- * characters which are 2-length arrays where [0] is an attribute and [1] is the character.
- */
- this.lines = new CircularList(this.scrollback);
+ // Create the terminal's buffers and set the current buffer
+ this.buffers = new BufferSet(this);
+ this.buffer = this.buffers.active; // Convenience shortcut;
+ this.buffers.on('activate', function (buffer) {
+ this._terminal.buffer = buffer;
+ });
+
var i = this.rows;
+
while (i--) {
- this.lines.push(this.blankLine());
+ this.buffer.lines.push(this.blankLine());
}
// Ensure the selection manager has the correct buffer
if (this.selectionManager) {
- this.selectionManager.setBuffer(this.lines);
+ this.selectionManager.setBuffer(this.buffer.lines);
}
- this.tabs;
this.setupStops();
// Store if user went browsing history in scrollback
}
if (this.options[key] !== value) {
- if (this.lines.length > value) {
- const amountToTrim = this.lines.length - value;
- const needsRefresh = (this.ydisp - amountToTrim < 0);
- this.lines.trimStart(amountToTrim);
- this.ybase = Math.max(this.ybase - amountToTrim, 0);
- this.ydisp = Math.max(this.ydisp - amountToTrim, 0);
+ if (this.buffer.lines.length > value) {
+ const amountToTrim = this.buffer.lines.length - value;
+ const needsRefresh = (this.buffer.ydisp - amountToTrim < 0);
+ this.buffer.lines.trimStart(amountToTrim);
+ this.buffer.ybase = Math.max(this.buffer.ybase - amountToTrim, 0);
+ this.buffer.ydisp = Math.max(this.buffer.ydisp - amountToTrim, 0);
if (needsRefresh) {
this.refresh(0, this.rows - 1);
}
}
- this.lines.maxLength = value;
+ this.buffer.lines.maxLength = value;
this.viewport.syncScrollArea();
}
break;
*/
Terminal.bindBlur = function (term) {
on(term.textarea, 'blur', function (ev) {
- term.refresh(term.y, term.y);
+ term.refresh(term.buffer.y, term.buffer.y);
if (term.sendFocus) {
term.send(C0.ESC + '[O');
}
on(this.element, 'copy', event => {
// If mouse events are active it means the selection manager is disabled and
// copy should be handled by the host program.
- if (this.mouseEvents) {
+ if (!term.hasSelection) {
return;
}
copyHandler(event, term, this.selectionManager);
this.viewport = new Viewport(this, this.viewportElement, this.viewportScrollArea, this.charMeasure);
this.renderer = new Renderer(this);
- this.selectionManager = new SelectionManager(this, this.lines, this.rowContainer, this.charMeasure);
+ this.selectionManager = new SelectionManager(
+ this, this.buffer.lines, this.rowContainer, this.charMeasure
+ );
this.selectionManager.on('refresh', data => {
this.renderer.refreshSelection(data.start, data.end);
});
Terminal.prototype.showCursor = function() {
if (!this.cursorState) {
this.cursorState = 1;
- this.refresh(this.y, this.y);
+ this.refresh(this.buffer.y, this.buffer.y);
}
};
var row;
// Make room for the new row in lines
- if (this.lines.length === this.lines.maxLength) {
- this.lines.trimStart(1);
- this.ybase--;
- if (this.ydisp !== 0) {
- this.ydisp--;
+ if (this.buffer.lines.length === this.buffer.lines.maxLength) {
+ this.buffer.lines.trimStart(1);
+ this.buffer.ybase--;
+ if (this.buffer.ydisp !== 0) {
+ this.buffer.ydisp--;
}
}
- this.ybase++;
+ this.buffer.ybase++;
// TODO: Why is this done twice?
if (!this.userScrolling) {
- this.ydisp = this.ybase;
+ this.buffer.ydisp = this.buffer.ybase;
}
// last line
- row = this.ybase + this.rows - 1;
+ row = this.buffer.ybase + this.rows - 1;
// subtract the bottom scroll region
- row -= this.rows - 1 - this.scrollBottom;
+ row -= this.rows - 1 - this.buffer.scrollBottom;
- if (row === this.lines.length) {
+ if (row === this.buffer.lines.length) {
// Optimization: pushing is faster than splicing when they amount to the same behavior
- this.lines.push(this.blankLine(undefined, isWrapped));
+ this.buffer.lines.push(this.blankLine(undefined, isWrapped));
} else {
// add our new line
- this.lines.splice(row, 0, this.blankLine(undefined, isWrapped));
+ this.buffer.lines.splice(row, 0, this.blankLine(undefined, isWrapped));
}
- if (this.scrollTop !== 0) {
- if (this.ybase !== 0) {
- this.ybase--;
+ if (this.buffer.scrollTop !== 0) {
+ if (this.buffer.ybase !== 0) {
+ this.buffer.ybase--;
if (!this.userScrolling) {
- this.ydisp = this.ybase;
+ this.buffer.ydisp = this.buffer.ybase;
}
}
- this.lines.splice(this.ybase + this.scrollTop, 1);
+ this.buffer.lines.splice(this.buffer.ybase + this.buffer.scrollTop, 1);
}
// this.maxRange();
- this.updateRange(this.scrollTop);
- this.updateRange(this.scrollBottom);
+ this.updateRange(this.buffer.scrollTop);
+ this.updateRange(this.buffer.scrollBottom);
/**
* This event is emitted whenever the terminal is scrolled.
*
* @event scroll
*/
- this.emit('scroll', this.ydisp);
+ this.emit('scroll', this.buffer.ydisp);
};
/**
*/
Terminal.prototype.scrollDisp = function(disp, suppressScrollEvent) {
if (disp < 0) {
- if (this.ydisp === 0) {
+ if (this.buffer.ydisp === 0) {
return;
}
this.userScrolling = true;
- } else if (disp + this.ydisp >= this.ybase) {
+ } else if (disp + this.buffer.ydisp >= this.buffer.ybase) {
this.userScrolling = false;
}
- const oldYdisp = this.ydisp;
- this.ydisp = Math.max(Math.min(this.ydisp + disp, this.ybase), 0);
+ const oldYdisp = this.buffer.ydisp;
+ this.buffer.ydisp = Math.max(Math.min(this.buffer.ydisp + disp, this.buffer.ybase), 0);
// No change occurred, don't trigger scroll/refresh
- if (oldYdisp === this.ydisp) {
+ if (oldYdisp === this.buffer.ydisp) {
return;
}
if (!suppressScrollEvent) {
- this.emit('scroll', this.ydisp);
+ this.emit('scroll', this.buffer.ydisp);
}
this.refresh(0, this.rows - 1);
* Scrolls the display of the terminal to the top.
*/
Terminal.prototype.scrollToTop = function() {
- this.scrollDisp(-this.ydisp);
+ this.scrollDisp(-this.buffer.ydisp);
};
/**
* Scrolls the display of the terminal to the bottom.
*/
Terminal.prototype.scrollToBottom = function() {
- this.scrollDisp(this.ybase - this.ydisp);
+ this.scrollDisp(this.buffer.ybase - this.buffer.ydisp);
};
/**
this.xoffSentToCatchUp = false;
}
- this.refreshStart = this.y;
- this.refreshEnd = this.y;
+ this.refreshStart = this.buffer.y;
+ this.refreshEnd = this.buffer.y;
// HACK: Set the parser state based on it's state at the time of return.
// This works around the bug #662 which saw the parser state reset in the
var state = this.parser.parse(data);
this.parser.setState(state);
- this.updateRange(this.y);
+ this.updateRange(this.buffer.y);
this.refresh(this.refreshStart, this.refreshEnd);
}
if (this.writeBuffer.length > 0) {
* Gets whether the terminal has an active selection.
*/
Terminal.prototype.hasSelection = function() {
- return this.selectionManager.hasSelection;
+ return this.selectionManager ? this.selectionManager.hasSelection : false;
};
/**
* behavior outside of xterm.js.
*/
Terminal.prototype.getSelection = function() {
- return this.selectionManager.selectionText;
+ return this.selectionManager ? this.selectionManager.selectionText : '';
};
/**
* Clears the current terminal selection.
*/
Terminal.prototype.clearSelection = function() {
- this.selectionManager.clearSelection();
+ if (this.selectionManager) {
+ this.selectionManager.clearSelection();
+ }
};
/**
* Selects all text within the terminal.
*/
Terminal.prototype.selectAll = function() {
- this.selectionManager.selectAll();
+ if (this.selectionManager) {
+ this.selectionManager.selectAll();
+ }
};
/**
this.restartCursorBlinking();
if (!this.compositionHelper.keydown.bind(this.compositionHelper)(ev)) {
- if (this.ybase !== this.ydisp) {
+ if (this.buffer.ybase !== this.buffer.ydisp) {
this.scrollToBottom();
}
return false;
j = this.cols;
if (j < x) {
ch = [this.defAttr, ' ', 1]; // does xterm use the default attr?
- i = this.lines.length;
+ i = this.buffer.lines.length;
while (i--) {
- while (this.lines.get(i).length < x) {
- this.lines.get(i).push(ch);
+ while (this.buffer.lines.get(i).length < x) {
+ this.buffer.lines.get(i).push(ch);
}
}
}
if (j < y) {
el = this.element;
while (j++ < y) {
- // y is rows, not this.y
- if (this.lines.length < y + this.ybase) {
- if (this.ybase > 0 && this.lines.length <= this.ybase + this.y + addToY + 1) {
+ // y is rows, not this.buffer.y
+ if (this.buffer.lines.length < y + this.buffer.ybase) {
+ if (this.buffer.ybase > 0 && this.buffer.lines.length <= this.buffer.ybase + this.buffer.y + addToY + 1) {
// There is room above the buffer and there are no empty elements below the line,
// scroll up
- this.ybase--;
+ this.buffer.ybase--;
addToY++;
- if (this.ydisp > 0) {
+ if (this.buffer.ydisp > 0) {
// Viewport is at the top of the buffer, must increase downwards
- this.ydisp--;
+ this.buffer.ydisp--;
}
} else {
// Add a blank line if there is no buffer left at the top to scroll to, or if there
// are blank lines after the cursor
- this.lines.push(this.blankLine());
+ this.buffer.lines.push(this.blankLine());
}
}
if (this.children.length < y) {
}
} else { // (j > y)
while (j-- > y) {
- if (this.lines.length > y + this.ybase) {
- if (this.lines.length > this.ybase + this.y + 1) {
+ if (this.buffer.lines.length > y + this.buffer.ybase) {
+ if (this.buffer.lines.length > this.buffer.ybase + this.buffer.y + 1) {
// The line is a blank line below the cursor, remove it
- this.lines.pop();
+ this.buffer.lines.pop();
} else {
// The line is the cursor, scroll down
- this.ybase++;
- this.ydisp++;
+ this.buffer.ybase++;
+ this.buffer.ydisp++;
}
}
if (this.children.length > y) {
this.rows = y;
// Make sure that the cursor stays on screen
- if (this.y >= y) {
- this.y = y - 1;
+ if (this.buffer.y >= y) {
+ this.buffer.y = y - 1;
}
if (addToY) {
- this.y += addToY;
+ this.buffer.y += addToY;
}
- if (this.x >= x) {
- this.x = x - 1;
+ if (this.buffer.x >= x) {
+ this.buffer.x = x - 1;
}
- this.scrollTop = 0;
- this.scrollBottom = y - 1;
+ this.buffer.scrollTop = 0;
+ this.buffer.scrollBottom = y - 1;
this.charMeasure.measure();
this.refresh(0, this.rows - 1);
- this.normal = null;
-
this.geometry = [this.cols, this.rows];
this.emit('resize', {terminal: this, cols: x, rows: y});
};
*/
Terminal.prototype.setupStops = function(i) {
if (i != null) {
- if (!this.tabs[i]) {
+ if (!this.buffer.tabs[i]) {
i = this.prevStop(i);
}
} else {
- this.tabs = {};
+ this.buffer.tabs = {};
i = 0;
}
for (; i < this.cols; i += this.getOption('tabStopWidth')) {
- this.tabs[i] = true;
+ this.buffer.tabs[i] = true;
}
};
* @param {number} x The position to move the cursor to the previous tab stop.
*/
Terminal.prototype.prevStop = function(x) {
- if (x == null) x = this.x;
- while (!this.tabs[--x] && x > 0);
+ if (x == null) x = this.buffer.x;
+ while (!this.buffer.tabs[--x] && x > 0);
return x >= this.cols
? this.cols - 1
: x < 0 ? 0 : x;
* @param {number} x The position to move the cursor one tab stop forward.
*/
Terminal.prototype.nextStop = function(x) {
- if (x == null) x = this.x;
- while (!this.tabs[++x] && x < this.cols);
+ if (x == null) x = this.buffer.x;
+ while (!this.buffer.tabs[++x] && x < this.cols);
return x >= this.cols
? this.cols - 1
: x < 0 ? 0 : x;
* @param {number} y The line in which to operate.
*/
Terminal.prototype.eraseRight = function(x, y) {
- var line = this.lines.get(this.ybase + y);
+ var line = this.buffer.lines.get(this.buffer.ybase + y);
if (!line) {
return;
}
* @param {number} y The line in which to operate.
*/
Terminal.prototype.eraseLeft = function(x, y) {
- var line = this.lines.get(this.ybase + y);
+ var line = this.buffer.lines.get(this.buffer.ybase + y);
if (!line) {
return;
}
* Clears the entire buffer, making the prompt line the new first line.
*/
Terminal.prototype.clear = function() {
- if (this.ybase === 0 && this.y === 0) {
+ if (this.buffer.ybase === 0 && this.buffer.y === 0) {
// Don't clear if it's already clear
return;
}
- this.lines.set(0, this.lines.get(this.ybase + this.y));
- this.lines.length = 1;
- this.ydisp = 0;
- this.ybase = 0;
- this.y = 0;
+ this.buffer.lines.set(0, this.buffer.lines.get(this.buffer.ybase + this.buffer.y));
+ this.buffer.lines.length = 1;
+ this.buffer.ydisp = 0;
+ this.buffer.ybase = 0;
+ this.buffer.y = 0;
for (var i = 1; i < this.rows; i++) {
- this.lines.push(this.blankLine());
+ this.buffer.lines.push(this.blankLine());
}
this.refresh(0, this.rows - 1);
- this.emit('scroll', this.ydisp);
+ this.emit('scroll', this.buffer.ydisp);
};
/**
return;
}
+ // Clear the selection if the selection manager is available and has an active selection
+ if (this.selectionManager && this.selectionManager.hasSelection) {
+ this.selectionManager.clearSelection();
+ }
+
// Input is being sent to the terminal, the terminal should focus the prompt.
- if (this.ybase !== this.ydisp) {
+ if (this.buffer.ybase !== this.buffer.ydisp) {
this.scrollToBottom();
}
this.emit('data', data);
* ESC D Index (IND is 0x84).
*/
Terminal.prototype.index = function() {
- this.y++;
- if (this.y > this.scrollBottom) {
- this.y--;
+ this.buffer.y++;
+ if (this.buffer.y > this.buffer.scrollBottom) {
+ this.buffer.y--;
this.scroll();
}
// If the end of the line is hit, prevent this action from wrapping around to the next line.
- if (this.x >= this.cols) {
- this.x--;
+ if (this.buffer.x >= this.cols) {
+ this.buffer.x--;
}
};
*/
Terminal.prototype.reverseIndex = function() {
var j;
- if (this.y === this.scrollTop) {
+ if (this.buffer.y === this.buffer.scrollTop) {
// possibly move the code below to term.reverseScroll();
// test: echo -ne '\e[1;1H\e[44m\eM\e[0m'
// blankLine(true) is xterm/linux behavior
- this.lines.shiftElements(this.y + this.ybase, this.rows - 1, 1);
- this.lines.set(this.y + this.ybase, this.blankLine(true));
- this.updateRange(this.scrollTop);
- this.updateRange(this.scrollBottom);
+ this.buffer.lines.shiftElements(this.buffer.y + this.buffer.ybase, this.rows - 1, 1);
+ this.buffer.lines.set(this.buffer.y + this.buffer.ybase, this.blankLine(true));
+ this.updateRange(this.buffer.scrollTop);
+ this.updateRange(this.buffer.scrollBottom);
} else {
- this.y--;
+ this.buffer.y--;
}
};
this.options.cols = this.cols;
var customKeyEventHandler = this.customKeyEventHandler;
var cursorBlinkInterval = this.cursorBlinkInterval;
+ var inputHandler = this.inputHandler;
+ var buffers = this.buffers;
Terminal.call(this, this.options);
this.customKeyEventHandler = customKeyEventHandler;
this.cursorBlinkInterval = cursorBlinkInterval;
+ this.inputHandler = inputHandler;
+ this.buffers = buffers;
this.refresh(0, this.rows - 1);
this.viewport.syncScrollArea();
};
* ESC H Tab Set (HTS is 0x88).
*/
Terminal.prototype.tabSet = function() {
- this.tabs[this.x] = true;
+ this.buffer.tabs[this.buffer.x] = true;
};
/**
projects / mirror_xterm.js.git / blobdiff