fune/devtools/client/inspector/grids/grid-inspector.js

546 lines
18 KiB
JavaScript

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const Services = require("Services");
const { Task } = require("devtools/shared/task");
const SwatchColorPickerTooltip = require("devtools/client/shared/widgets/tooltip/SwatchColorPickerTooltip");
const {
updateGridColor,
updateGridHighlighted,
updateGrids,
} = require("./actions/grids");
const {
updateShowGridLineNumbers,
updateShowInfiniteLines,
} = require("./actions/highlighter-settings");
const SHOW_GRID_LINE_NUMBERS = "devtools.gridinspector.showGridLineNumbers";
const SHOW_INFINITE_LINES_PREF = "devtools.gridinspector.showInfiniteLines";
// Default grid colors.
const GRID_COLORS = [
"#4B0082",
"#BB9DFF",
"#FFB53B",
"#71F362",
"#FF90FF",
"#FF90FF",
"#1B80FF",
"#FF2647"
];
function GridInspector(inspector, window) {
this.document = window.document;
this.highlighters = inspector.highlighters;
this.inspector = inspector;
this.store = inspector.store;
this.walker = this.inspector.walker;
this.getSwatchColorPickerTooltip = this.getSwatchColorPickerTooltip.bind(this);
this.updateGridPanel = this.updateGridPanel.bind(this);
this.onGridLayoutChange = this.onGridLayoutChange.bind(this);
this.onHighlighterChange = this.onHighlighterChange.bind(this);
this.onMarkupMutation = this.onMarkupMutation.bind(this);
this.onReflow = this.onReflow.bind(this);
this.onSetGridOverlayColor = this.onSetGridOverlayColor.bind(this);
this.onShowGridAreaHighlight = this.onShowGridAreaHighlight.bind(this);
this.onShowGridCellHighlight = this.onShowGridCellHighlight.bind(this);
this.onShowGridLineNamesHighlight = this.onShowGridLineNamesHighlight.bind(this);
this.onSidebarSelect = this.onSidebarSelect.bind(this);
this.onToggleGridHighlighter = this.onToggleGridHighlighter.bind(this);
this.onToggleShowGridLineNumbers = this.onToggleShowGridLineNumbers.bind(this);
this.onToggleShowInfiniteLines = this.onToggleShowInfiniteLines.bind(this);
this.init();
}
GridInspector.prototype = {
/**
* Initializes the grid inspector by fetching the LayoutFront from the walker, loading
* the highlighter settings and initalizing the SwatchColorPicker instance.
*/
init: Task.async(function* () {
if (!this.inspector) {
return;
}
this.layoutInspector = yield this.inspector.walker.getLayoutInspector();
this.loadHighlighterSettings();
// Create a shared SwatchColorPicker instance to be reused by all GridItem components.
this.swatchColorPickerTooltip = new SwatchColorPickerTooltip(
this.inspector.toolbox.doc,
this.inspector,
{
supportsCssColor4ColorFunction: () => false
}
);
this.highlighters.on("grid-highlighter-hidden", this.onHighlighterChange);
this.highlighters.on("grid-highlighter-shown", this.onHighlighterChange);
this.inspector.on("markupmutation", this.onMarkupMutation);
this.inspector.sidebar.on("select", this.onSidebarSelect);
this.onSidebarSelect();
}),
/**
* Destruction function called when the inspector is destroyed. Removes event listeners
* and cleans up references.
*/
destroy() {
this.highlighters.off("grid-highlighter-hidden", this.onHighlighterChange);
this.highlighters.off("grid-highlighter-shown", this.onHighlighterChange);
this.inspector.off("markupmutation", this.onMarkupMutation);
this.inspector.sidebar.off("select", this.onSidebarSelect);
this.layoutInspector.off("grid-layout-changed", this.onGridLayoutChange);
this.inspector.reflowTracker.untrackReflows(this, this.onReflow);
this.swatchColorPickerTooltip.destroy();
this.document = null;
this.highlighters = null;
this.inspector = null;
this.layoutInspector = null;
this.store = null;
this.swatchColorPickerTooltip = null;
this.walker = null;
},
getComponentProps() {
return {
getSwatchColorPickerTooltip: this.getSwatchColorPickerTooltip,
onSetGridOverlayColor: this.onSetGridOverlayColor,
onShowGridAreaHighlight: this.onShowGridAreaHighlight,
onShowGridCellHighlight: this.onShowGridCellHighlight,
onShowGridLineNamesHighlight: this.onShowGridLineNamesHighlight,
onToggleGridHighlighter: this.onToggleGridHighlighter,
onToggleShowGridLineNumbers: this.onToggleShowGridLineNumbers,
onToggleShowInfiniteLines: this.onToggleShowInfiniteLines,
};
},
/**
* Returns the initial color linked to a grid container. Will attempt to check the
* current grid highlighter state and the store.
*
* @param {NodeFront} nodeFront
* The NodeFront for which we need the color.
* @param {String} fallbackColor
* The color to use if no color could be found for the node front.
* @return {String} color
* The color to use.
*/
getInitialGridColor(nodeFront, fallbackColor) {
let highlighted = nodeFront == this.highlighters.gridHighlighterShown;
let color;
if (highlighted && this.highlighters.state.grid.options) {
// If the node front is currently highlighted, use the color from the highlighter
// options.
color = this.highlighters.state.grid.options.color;
} else {
// Otherwise use the color defined in the store for this node front.
color = this.getGridColorForNodeFront(nodeFront);
}
return color || fallbackColor;
},
/**
* Returns the color set for the grid highlighter associated with the provided
* nodeFront.
*
* @param {NodeFront} nodeFront
* The NodeFront for which we need the color.
*/
getGridColorForNodeFront(nodeFront) {
let { grids } = this.store.getState();
for (let grid of grids) {
if (grid.nodeFront === nodeFront) {
return grid.color;
}
}
return null;
},
/**
* Create a highlighter settings object for the provided nodeFront.
*
* @param {NodeFront} nodeFront
* The NodeFront for which we need highlighter settings.
*/
getGridHighlighterSettings(nodeFront) {
let { highlighterSettings } = this.store.getState();
// Get the grid color for the provided nodeFront.
let color = this.getGridColorForNodeFront(nodeFront);
// Merge the grid color to the generic highlighter settings.
return Object.assign({}, highlighterSettings, {
color
});
},
/**
* Retrieve the shared SwatchColorPicker instance.
*/
getSwatchColorPickerTooltip() {
return this.swatchColorPickerTooltip;
},
/**
* Returns true if the layout panel is visible, and false otherwise.
*/
isPanelVisible() {
return this.inspector.toolbox && this.inspector.sidebar &&
this.inspector.toolbox.currentToolId === "inspector" &&
this.inspector.sidebar.getCurrentTabID() === "layoutview";
},
/**
* Load the grid highligher display settings into the store from the stored preferences.
*/
loadHighlighterSettings() {
let { dispatch } = this.store;
let showGridLineNumbers = Services.prefs.getBoolPref(SHOW_GRID_LINE_NUMBERS);
let showInfinteLines = Services.prefs.getBoolPref(SHOW_INFINITE_LINES_PREF);
dispatch(updateShowGridLineNumbers(showGridLineNumbers));
dispatch(updateShowInfiniteLines(showInfinteLines));
},
showGridHighlighter(node, settings) {
this.lastHighlighterColor = settings.color;
this.lastHighlighterNode = node;
this.lastHighlighterState = true;
this.highlighters.showGridHighlighter(node, settings);
},
toggleGridHighlighter(node, settings) {
this.lastHighlighterColor = settings.color;
this.lastHighlighterNode = node;
this.lastHighlighterState = node !== this.highlighters.gridHighlighterShown;
this.highlighters.toggleGridHighlighter(node, settings);
},
/**
* Updates the grid panel by dispatching the new grid data. This is called when the
* layout view becomes visible or the view needs to be updated with new grid data.
*
* @param {Array|null} gridFronts
* Optional array of all GridFront in the current page.
*/
updateGridPanel: Task.async(function* (gridFronts) {
// Stop refreshing if the inspector or store is already destroyed.
if (!this.inspector || !this.store) {
return;
}
// Get all the GridFront from the server if no gridFronts were provided.
if (!gridFronts) {
try {
gridFronts = yield this.layoutInspector.getAllGrids(this.walker.rootNode);
} catch (e) {
// This call might fail if called asynchrously after the toolbox is finished
// closing.
return;
}
}
let grids = [];
for (let i = 0; i < gridFronts.length; i++) {
let grid = gridFronts[i];
let nodeFront;
try {
nodeFront = yield this.walker.getNodeFromActor(grid.actorID, ["containerEl"]);
} catch (e) {
// This call might fail if called asynchrously after the toolbox is finished
// closing.
return;
}
let fallbackColor = GRID_COLORS[i % GRID_COLORS.length];
let color = this.getInitialGridColor(nodeFront, fallbackColor);
grids.push({
id: i,
color,
gridFragments: grid.gridFragments,
highlighted: nodeFront == this.highlighters.gridHighlighterShown,
nodeFront,
});
}
this.store.dispatch(updateGrids(grids));
}),
/**
* Handler for "grid-layout-changed" events emitted from the LayoutActor.
*
* @param {Array} grids
* Array of all GridFront in the current page.
*/
onGridLayoutChange(grids) {
if (this.isPanelVisible()) {
this.updateGridPanel(grids);
}
},
/**
* Handler for "grid-highlighter-shown" and "grid-highlighter-hidden" events emitted
* from the HighlightersOverlay. Updates the NodeFront's grid highlighted state.
*
* @param {Event} event
* Event that was triggered.
* @param {NodeFront} nodeFront
* The NodeFront of the grid container element for which the grid highlighter
* is shown for.
* @param {Object} options
* The highlighter options used for the highlighter being shown/hidden.
*/
onHighlighterChange(event, nodeFront, options = {}) {
let highlighted = event === "grid-highlighter-shown";
let { color } = options;
// Only tell the store that the highlighter changed if it did change.
// If we're still highlighting the same node, with the same color, no need to force
// a refresh.
if (this.lastHighlighterState !== highlighted ||
this.lastHighlighterNode !== nodeFront) {
this.store.dispatch(updateGridHighlighted(nodeFront, highlighted));
}
if (this.lastHighlighterColor !== color || this.lastHighlighterNode !== nodeFront) {
this.store.dispatch(updateGridColor(nodeFront, color));
}
this.lastHighlighterColor = null;
this.lastHighlighterNode = null;
this.lastHighlighterState = null;
},
/**
* Handler for the "markupmutation" event fired by the inspector. On markup mutations,
* update the grid panel content.
*/
onMarkupMutation() {
this.updateGridPanel();
},
/**
* Handler for the "reflow" event fired by the inspector's reflow tracker. On reflows,
* update the grid panel content.
*/
onReflow() {
this.updateGridPanel();
},
/**
* Handler for a change in the grid overlay color picker for a grid container.
*
* @param {NodeFront} node
* The NodeFront of the grid container element for which the grid color is
* being updated.
* @param {String} color
* A hex string representing the color to use.
*/
onSetGridOverlayColor(node, color) {
this.store.dispatch(updateGridColor(node, color));
let { grids } = this.store.getState();
// If the grid for which the color was updated currently has a highlighter, update
// the color.
for (let grid of grids) {
if (grid.nodeFront === node && grid.highlighted) {
let highlighterSettings = this.getGridHighlighterSettings(node);
this.showGridHighlighter(node, highlighterSettings);
}
}
},
/**
* Highlights the grid area in the CSS Grid Highlighter for the given grid.
*
* @param {NodeFront} node
* The NodeFront of the grid container element for which the grid
* highlighter is highlighted for.
* @param {String} gridAreaName
* The name of the grid area for which the grid highlighter
* is highlighted for.
* @param {String} color
* The color of the grid area for which the grid highlighter
* is highlighted for.
*/
onShowGridAreaHighlight(node, gridAreaName, color) {
let { highlighterSettings } = this.store.getState();
highlighterSettings.showGridArea = gridAreaName;
highlighterSettings.color = color;
this.showGridHighlighter(node, highlighterSettings);
this.store.dispatch(updateGridHighlighted(node, true));
},
/**
* Highlights the grid cell in the CSS Grid Highlighter for the given grid.
*
* @param {NodeFront} node
* The NodeFront of the grid container element for which the grid
* highlighter is highlighted for.
* @param {String} color
* The color of the grid cell for which the grid highlighter
* is highlighted for.
* @param {Number|null} gridFragmentIndex
* The index of the grid fragment for which the grid highlighter
* is highlighted for.
* @param {Number|null} rowNumber
* The row number of the grid cell for which the grid highlighter
* is highlighted for.
* @param {Number|null} columnNumber
* The column number of the grid cell for which the grid highlighter
* is highlighted for.
*/
onShowGridCellHighlight(node, color, gridFragmentIndex, rowNumber, columnNumber) {
let { highlighterSettings } = this.store.getState();
highlighterSettings.showGridCell = { gridFragmentIndex, rowNumber, columnNumber };
highlighterSettings.color = color;
this.showGridHighlighter(node, highlighterSettings);
this.store.dispatch(updateGridHighlighted(node, true));
},
/**
* Highlights the grid line in the CSS Grid Highlighter for the given grid.
*
* @param {NodeFront} node
* The NodeFront of the grid container element for which the grid
* highlighter is highlighted for.
* @param {Number|null} gridFragmentIndex
* The index of the grid fragment for which the grid highlighter
* is highlighted for.
* @param {String} color
* The color of the grid line for which the grid highlighter
* is highlighted for.
* @param {Number|null} lineNumber
* The line number of the grid for which the grid highlighter
* is highlighted for.
* @param {String|null} type
* The type of line for which the grid line is being highlighted for.
*/
onShowGridLineNamesHighlight(node, gridFragmentIndex, color, lineNumber, type) {
let { highlighterSettings } = this.store.getState();
highlighterSettings.showGridLineNames = {
gridFragmentIndex,
lineNumber,
type
};
highlighterSettings.color = color;
this.showGridHighlighter(node, highlighterSettings);
this.store.dispatch(updateGridHighlighted(node, true));
},
/**
* Handler for the inspector sidebar select event. Starts listening for
* "grid-layout-changed" if the layout panel is visible. Otherwise, stop
* listening for grid layout changes. Finally, refresh the layout view if
* it is visible.
*/
onSidebarSelect() {
if (!this.isPanelVisible()) {
this.layoutInspector.off("grid-layout-changed", this.onGridLayoutChange);
this.inspector.reflowTracker.untrackReflows(this, this.onReflow);
return;
}
this.inspector.reflowTracker.trackReflows(this, this.onReflow);
this.layoutInspector.on("grid-layout-changed", this.onGridLayoutChange);
this.updateGridPanel();
},
/**
* Handler for a change in the input checkboxes in the GridList component.
* Toggles on/off the grid highlighter for the provided grid container element.
*
* @param {NodeFront} node
* The NodeFront of the grid container element for which the grid
* highlighter is toggled on/off for.
*/
onToggleGridHighlighter(node) {
let highlighterSettings = this.getGridHighlighterSettings(node);
this.toggleGridHighlighter(node, highlighterSettings);
this.store.dispatch(updateGridHighlighted(node,
node !== this.highlighters.gridHighlighterShown));
},
/**
* Handler for a change in the show grid line numbers checkbox in the
* GridDisplaySettings component. Toggles on/off the option to show the grid line
* numbers in the grid highlighter. Refreshes the shown grid highlighter for the
* grids currently highlighted.
*
* @param {Boolean} enabled
* Whether or not the grid highlighter should show the grid line numbers.
*/
onToggleShowGridLineNumbers(enabled) {
this.store.dispatch(updateShowGridLineNumbers(enabled));
Services.prefs.setBoolPref(SHOW_GRID_LINE_NUMBERS, enabled);
let { grids } = this.store.getState();
for (let grid of grids) {
if (grid.highlighted) {
let highlighterSettings = this.getGridHighlighterSettings(grid.nodeFront);
this.showGridHighlighter(grid.nodeFront, highlighterSettings);
}
}
},
/**
* Handler for a change in the extend grid lines infinitely checkbox in the
* GridDisplaySettings component. Toggles on/off the option to extend the grid
* lines infinitely in the grid highlighter. Refreshes the shown grid highlighter
* for grids currently highlighted.
*
* @param {Boolean} enabled
* Whether or not the grid highlighter should extend grid lines infinitely.
*/
onToggleShowInfiniteLines(enabled) {
this.store.dispatch(updateShowInfiniteLines(enabled));
Services.prefs.setBoolPref(SHOW_INFINITE_LINES_PREF, enabled);
let { grids } = this.store.getState();
for (let grid of grids) {
if (grid.highlighted) {
let highlighterSettings = this.getGridHighlighterSettings(grid.nodeFront);
this.showGridHighlighter(grid.nodeFront, highlighterSettings);
}
}
},
};
module.exports = GridInspector;