Merge pull request #2360 from jerch/left_right_scroll

Support column sequences SL (scroll left), SR (scroll right), DECIC (insert columns) and DECDC (delete columns).
This commit is contained in:
jerch
2019-10-24 22:03:30 +02:00
committed by GitHub
11 changed files with 371 additions and 16 deletions
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abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyzAB
+64 -7
View File
@@ -25,6 +25,14 @@ function getCursor(term: TestTerminal): number[] {
];
}
function getLines(term: TestTerminal, limit: number = term.rows): string[] {
const res: string[] = [];
for (let i = 0; i < limit; ++i) {
res.push(term.buffer.lines.get(i).translateToString(true));
}
return res;
}
describe('InputHandler', () => {
describe('save and restore cursor', () => {
const terminal = new MockInputHandlingTerminal();
@@ -1125,13 +1133,6 @@ describe('InputHandler', () => {
beforeEach(() => {
term = new TestTerminal({cols: 10, rows: 10});
});
function getLines(term: TestTerminal, limit: number = term.rows): string[] {
const res: string[] = [];
for (let i = 0; i < limit; ++i) {
res.push(term.buffer.lines.get(i).translateToString(true));
}
return res;
}
it('scrollUp', () => {
term.writeSync('0\r\n1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\x1b[2;4r\x1b[2Sm');
assert.deepEqual(getLines(term), ['m', '3', '', '', '4', '5', '6', '7', '8', '9']);
@@ -1191,4 +1192,60 @@ describe('InputHandler', () => {
assert.deepEqual(getLines(term), ['0', '1', 'n', 'm', '', '', '6', '7', '8', '9']);
});
});
describe('SL/SR/DECIC/DECDC', () => {
let term: TestTerminal;
beforeEach(() => {
term = new TestTerminal({cols: 5, rows: 5, scrollback: 1});
});
it('SL (scrollLeft)', () => {
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[ @');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '2345', '2345', '2345', '2345', '2345']);
term.writeSync('\x1b[0 @');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '345', '345', '345', '345', '345']);
term.writeSync('\x1b[2 @');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '5', '5', '5', '5', '5']);
});
it('SR (scrollRight)', () => {
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[ A');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', ' 1234', ' 1234', ' 1234', ' 1234', ' 1234']);
term.writeSync('\x1b[0 A');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', ' 123', ' 123', ' 123', ' 123', ' 123']);
term.writeSync('\x1b[2 A');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', ' 1', ' 1', ' 1', ' 1', ' 1']);
});
it('insertColumns (DECIC)', () => {
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[3;3H');
term.writeSync('\x1b[\'}');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '12 34', '12 34', '12 34', '12 34', '12 34']);
term.reset();
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[3;3H');
term.writeSync('\x1b[1\'}');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '12 34', '12 34', '12 34', '12 34', '12 34']);
term.reset();
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[3;3H');
term.writeSync('\x1b[2\'}');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '12 3', '12 3', '12 3', '12 3', '12 3']);
});
it('deleteColumns (DECDC)', () => {
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[3;3H');
term.writeSync('\x1b[\'~');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '1245', '1245', '1245', '1245', '1245']);
term.reset();
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[3;3H');
term.writeSync('\x1b[1\'~');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '1245', '1245', '1245', '1245', '1245']);
term.reset();
term.writeSync('12345'.repeat(6));
term.writeSync('\x1b[3;3H');
term.writeSync('\x1b[2\'~');
assert.deepEqual(getLines(term, term.rows + 1), ['12345', '125', '125', '125', '125', '125']);
});
});
});
+103 -9
View File
@@ -175,7 +175,9 @@ export class InputHandler extends Disposable implements IInputHandler {
* CSI handler
*/
this._parser.setCsiHandler({final: '@'}, params => this.insertChars(params));
this._parser.setCsiHandler({intermediates: ' ', final: '@'}, params => this.scrollLeft(params));
this._parser.setCsiHandler({final: 'A'}, params => this.cursorUp(params));
this._parser.setCsiHandler({intermediates: ' ', final: 'A'}, params => this.scrollRight(params));
this._parser.setCsiHandler({final: 'B'}, params => this.cursorDown(params));
this._parser.setCsiHandler({final: 'C'}, params => this.cursorForward(params));
this._parser.setCsiHandler({final: 'D'}, params => this.cursorBackward(params));
@@ -216,6 +218,8 @@ export class InputHandler extends Disposable implements IInputHandler {
this._parser.setCsiHandler({final: 'r'}, params => this.setScrollRegion(params));
this._parser.setCsiHandler({final: 's'}, params => this.saveCursor(params));
this._parser.setCsiHandler({final: 'u'}, params => this.restoreCursor(params));
this._parser.setCsiHandler({intermediates: '\'', final: '}'}, params => this.insertColumns(params));
this._parser.setCsiHandler({intermediates: '\'', final: '~'}, params => this.deleteColumns(params));
/**
* execute handler
@@ -1033,18 +1037,108 @@ export class InputHandler extends Disposable implements IInputHandler {
* CSI Ps T Scroll down Ps lines (default = 1) (SD).
*/
public scrollDown(params: IParams): void {
if (params.length < 2) {
let param = params.params[0] || 1;
let param = params.params[0] || 1;
// make buffer local for faster access
const buffer = this._bufferService.buffer;
// make buffer local for faster access
const buffer = this._bufferService.buffer;
while (param--) {
buffer.lines.splice(buffer.ybase + buffer.scrollBottom, 1);
buffer.lines.splice(buffer.ybase + buffer.scrollTop, 0, buffer.getBlankLine(this._terminal.eraseAttrData()));
}
this._dirtyRowService.markRangeDirty(buffer.scrollTop, buffer.scrollBottom);
while (param--) {
buffer.lines.splice(buffer.ybase + buffer.scrollBottom, 1);
buffer.lines.splice(buffer.ybase + buffer.scrollTop, 0, buffer.getBlankLine(DEFAULT_ATTR_DATA));
}
this._dirtyRowService.markRangeDirty(buffer.scrollTop, buffer.scrollBottom);
}
/**
* CSI Ps SP @ Scroll left Ps columns (default = 1) (SL) ECMA-48
*
* Notation: (Pn)
* Representation: CSI Pn 02/00 04/00
* Parameter default value: Pn = 1
* SL causes the data in the presentation component to be moved by n character positions
* if the line orientation is horizontal, or by n line positions if the line orientation
* is vertical, such that the data appear to move to the left; where n equals the value of Pn.
* The active presentation position is not affected by this control function.
*
* Supported:
* - always left shift (no line orientation setting respected)
*/
public scrollLeft(params: IParams): void {
const buffer = this._bufferService.buffer;
if (buffer.y > buffer.scrollBottom || buffer.y < buffer.scrollTop) {
return;
}
const param = params.params[0] || 1;
for (let y = buffer.scrollTop; y <= buffer.scrollBottom; ++y) {
const line = buffer.lines.get(buffer.ybase + y);
line.deleteCells(0, param, buffer.getNullCell(this._terminal.eraseAttrData()));
line.isWrapped = false;
}
this._dirtyRowService.markRangeDirty(buffer.scrollTop, buffer.scrollBottom);
}
/**
* CSI Ps SP A Scroll right Ps columns (default = 1) (SR) ECMA-48
*
* Notation: (Pn)
* Representation: CSI Pn 02/00 04/01
* Parameter default value: Pn = 1
* SR causes the data in the presentation component to be moved by n character positions
* if the line orientation is horizontal, or by n line positions if the line orientation
* is vertical, such that the data appear to move to the right; where n equals the value of Pn.
* The active presentation position is not affected by this control function.
*
* Supported:
* - always right shift (no line orientation setting respected)
*/
public scrollRight(params: IParams): void {
const buffer = this._bufferService.buffer;
if (buffer.y > buffer.scrollBottom || buffer.y < buffer.scrollTop) {
return;
}
const param = params.params[0] || 1;
for (let y = buffer.scrollTop; y <= buffer.scrollBottom; ++y) {
const line = buffer.lines.get(buffer.ybase + y);
line.insertCells(0, param, buffer.getNullCell(this._terminal.eraseAttrData()));
line.isWrapped = false;
}
this._dirtyRowService.markRangeDirty(buffer.scrollTop, buffer.scrollBottom);
}
/**
* CSI Pm ' }
* Insert Ps Column(s) (default = 1) (DECIC), VT420 and up.
*/
public insertColumns(params: IParams): void {
const buffer = this._bufferService.buffer;
if (buffer.y > buffer.scrollBottom || buffer.y < buffer.scrollTop) {
return;
}
const param = params.params[0] || 1;
for (let y = buffer.scrollTop; y <= buffer.scrollBottom; ++y) {
const line = this._bufferService.buffer.lines.get(buffer.ybase + y);
line.insertCells(buffer.x, param, buffer.getNullCell(this._terminal.eraseAttrData()));
line.isWrapped = false;
}
this._dirtyRowService.markRangeDirty(buffer.scrollTop, buffer.scrollBottom);
}
/**
* CSI Pm ' ~
* Delete Ps Column(s) (default = 1) (DECDC), VT420 and up.
*/
public deleteColumns(params: IParams): void {
const buffer = this._bufferService.buffer;
if (buffer.y > buffer.scrollBottom || buffer.y < buffer.scrollTop) {
return;
}
const param = params.params[0] || 1;
for (let y = buffer.scrollTop; y <= buffer.scrollBottom; ++y) {
const line = buffer.lines.get(buffer.ybase + y);
line.deleteCells(buffer.x, param, buffer.getNullCell(this._terminal.eraseAttrData()));
line.isWrapped = false;
}
this._dirtyRowService.markRangeDirty(buffer.scrollTop, buffer.scrollBottom);
}
/**
+4
View File
@@ -85,7 +85,9 @@ export interface IInputHandler {
/** C0 SI */ shiftIn(): void;
/** CSI @ */ insertChars(params: IParams): void;
/** CSI SP @ */ scrollLeft(params: IParams): void;
/** CSI A */ cursorUp(params: IParams): void;
/** CSI SP A */ scrollRight(params: IParams): void;
/** CSI B */ cursorDown(params: IParams): void;
/** CSI C */ cursorForward(params: IParams): void;
/** CSI D */ cursorBackward(params: IParams): void;
@@ -121,6 +123,8 @@ export interface IInputHandler {
/** CSI r */ setScrollRegion(params: IParams, collect?: string): void;
/** CSI s */ saveCursor(params: IParams): void;
/** CSI u */ restoreCursor(params: IParams): void;
/** CSI ' } */ insertColumns(params: IParams): void;
/** CSI ' ~ */ deleteColumns(params: IParams): void;
/** OSC 0
OSC 2 */ setTitle(data: string): void;
/** ESC E */ nextLine(): void;