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ext-code_lens.js
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ext-code_lens.js
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ace.define("ace/ext/code_lens",["require","exports","module","ace/lib/event","ace/lib/lang","ace/lib/dom","ace/editor","ace/config"], function(require, exports, module){"use strict";
var event = require("../lib/event");
var lang = require("../lib/lang");
var dom = require("../lib/dom");
function clearLensElements(renderer) {
var textLayer = renderer.$textLayer;
var lensElements = textLayer.$lenses;
if (lensElements)
lensElements.forEach(function (el) { el.remove(); });
textLayer.$lenses = null;
}
function renderWidgets(changes, renderer) {
var changed = changes & renderer.CHANGE_LINES
|| changes & renderer.CHANGE_FULL
|| changes & renderer.CHANGE_SCROLL
|| changes & renderer.CHANGE_TEXT;
if (!changed)
return;
var session = renderer.session;
var lineWidgets = renderer.session.lineWidgets;
var textLayer = renderer.$textLayer;
var lensElements = textLayer.$lenses;
if (!lineWidgets) {
if (lensElements)
clearLensElements(renderer);
return;
}
var textCells = renderer.$textLayer.$lines.cells;
var config = renderer.layerConfig;
var padding = renderer.$padding;
if (!lensElements)
lensElements = textLayer.$lenses = [];
var index = 0;
for (var i = 0; i < textCells.length; i++) {
var row = textCells[i].row;
var widget = lineWidgets[row];
var lenses = widget && widget.lenses;
if (!lenses || !lenses.length)
continue;
var lensContainer = lensElements[index];
if (!lensContainer) {
lensContainer = lensElements[index]
= dom.buildDom(["div", { class: "ace_codeLens" }], renderer.container);
}
lensContainer.style.height = config.lineHeight + "px";
index++;
for (var j = 0; j < lenses.length; j++) {
var el = lensContainer.childNodes[2 * j];
if (!el) {
if (j != 0)
lensContainer.appendChild(dom.createTextNode("\xa0|\xa0"));
el = dom.buildDom(["a"], lensContainer);
}
el.textContent = lenses[j].title;
el.lensCommand = lenses[j];
}
while (lensContainer.childNodes.length > 2 * j - 1)
lensContainer.lastChild.remove();
var top = renderer.$cursorLayer.getPixelPosition({
row: row,
column: 0
}, true).top - config.lineHeight * widget.rowsAbove - config.offset;
lensContainer.style.top = top + "px";
var left = renderer.gutterWidth;
var indent = session.getLine(row).search(/\S|$/);
if (indent == -1)
indent = 0;
left += indent * config.characterWidth;
lensContainer.style.paddingLeft = padding + left + "px";
}
while (index < lensElements.length)
lensElements.pop().remove();
}
function clearCodeLensWidgets(session) {
if (!session.lineWidgets)
return;
var widgetManager = session.widgetManager;
session.lineWidgets.forEach(function (widget) {
if (widget && widget.lenses)
widgetManager.removeLineWidget(widget);
});
}
exports.setLenses = function (session, lenses) {
var firstRow = Number.MAX_VALUE;
clearCodeLensWidgets(session);
lenses && lenses.forEach(function (lens) {
var row = lens.start.row;
var column = lens.start.column;
var widget = session.lineWidgets && session.lineWidgets[row];
if (!widget || !widget.lenses) {
widget = session.widgetManager.$registerLineWidget({
rowCount: 1,
rowsAbove: 1,
row: row,
column: column,
lenses: []
});
}
widget.lenses.push(lens.command);
if (row < firstRow)
firstRow = row;
});
session._emit("changeFold", { data: { start: { row: firstRow } } });
return firstRow;
};
function attachToEditor(editor) {
editor.codeLensProviders = [];
editor.renderer.on("afterRender", renderWidgets);
if (!editor.$codeLensClickHandler) {
editor.$codeLensClickHandler = function (e) {
var command = e.target.lensCommand;
if (!command)
return;
editor.execCommand(command.id, command.arguments);
editor._emit("codeLensClick", e);
};
event.addListener(editor.container, "click", editor.$codeLensClickHandler, editor);
}
editor.$updateLenses = function () {
var session = editor.session;
if (!session)
return;
var providersToWaitNum = editor.codeLensProviders.length;
var lenses = [];
editor.codeLensProviders.forEach(function (provider) {
provider.provideCodeLenses(session, function (err, payload) {
if (err)
return;
payload.forEach(function (lens) {
lenses.push(lens);
});
providersToWaitNum--;
if (providersToWaitNum == 0) {
applyLenses();
}
});
});
function applyLenses() {
var cursor = session.selection.cursor;
var oldRow = session.documentToScreenRow(cursor);
var scrollTop = session.getScrollTop();
var firstRow = exports.setLenses(session, lenses);
var lastDelta = session.$undoManager && session.$undoManager.$lastDelta;
if (lastDelta && lastDelta.action == "remove" && lastDelta.lines.length > 1)
return;
var row = session.documentToScreenRow(cursor);
var lineHeight = editor.renderer.layerConfig.lineHeight;
var top = session.getScrollTop() + (row - oldRow) * lineHeight;
if (firstRow == 0 && scrollTop < lineHeight / 4 && scrollTop > -lineHeight / 4) {
top = -lineHeight;
}
session.setScrollTop(top);
}
};
var updateLenses = lang.delayedCall(editor.$updateLenses);
editor.$updateLensesOnInput = function () {
updateLenses.delay(250);
};
editor.on("input", editor.$updateLensesOnInput);
}
function detachFromEditor(editor) {
editor.off("input", editor.$updateLensesOnInput);
editor.renderer.off("afterRender", renderWidgets);
if (editor.$codeLensClickHandler)
editor.container.removeEventListener("click", editor.$codeLensClickHandler);
}
exports.registerCodeLensProvider = function (editor, codeLensProvider) {
editor.setOption("enableCodeLens", true);
editor.codeLensProviders.push(codeLensProvider);
editor.$updateLensesOnInput();
};
exports.clear = function (session) {
exports.setLenses(session, null);
};
var Editor = require("../editor").Editor;
require("../config").defineOptions(Editor.prototype, "editor", {
enableCodeLens: {
set: function (val) {
if (val) {
attachToEditor(this);
}
else {
detachFromEditor(this);
}
}
}
});
dom.importCssString("\n.ace_codeLens {\n position: absolute;\n color: #aaa;\n font-size: 88%;\n background: inherit;\n width: 100%;\n display: flex;\n align-items: flex-end;\n pointer-events: none;\n}\n.ace_codeLens > a {\n cursor: pointer;\n pointer-events: auto;\n}\n.ace_codeLens > a:hover {\n color: #0000ff;\n text-decoration: underline;\n}\n.ace_dark > .ace_codeLens > a:hover {\n color: #4e94ce;\n}\n", "codelense.css", false);
}); (function() {
ace.require(["ace/ext/code_lens"], function(m) {
if (typeof module == "object" && typeof exports == "object" && module) {
module.exports = m;
}
});
})();

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ext-code_lens.js (7 KB)

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