blob: 42c9e88ec0f6439ced69f0277187472f12c1c209 [file] [log] [blame]
/**
* @license
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function() {
'use strict';
// Maximum length for patch set descriptions.
const PATCH_DESC_MAX_LENGTH = 500;
const WARN_SHOW_ALL_THRESHOLD = 1000;
const LOADING_DEBOUNCE_INTERVAL = 100;
const SIZE_BAR_MAX_WIDTH = 61;
const SIZE_BAR_GAP_WIDTH = 1;
const SIZE_BAR_MIN_WIDTH = 1.5;
const RENDER_TIMING_LABEL = 'FileListRenderTime';
const RENDER_AVG_TIMING_LABEL = 'FileListRenderTimePerFile';
const EXPAND_ALL_TIMING_LABEL = 'ExpandAllDiffs';
const EXPAND_ALL_AVG_TIMING_LABEL = 'ExpandAllPerDiff';
const FileStatus = {
A: 'Added',
C: 'Copied',
D: 'Deleted',
M: 'Modified',
R: 'Renamed',
W: 'Rewritten',
U: 'Unchanged',
};
const Defs = {};
/**
* Object containing layout values to be used in rendering size-bars.
* `max{Inserted,Deleted}` represent the largest values of the
* `lines_inserted` and `lines_deleted` fields of the files respectively. The
* `max{Addition,Deletion}Width` represent the width of the graphic allocated
* to the insertion or deletion side respectively. Finally, the
* `deletionOffset` value represents the x-position for the deletion bar.
*
* @typedef {{
* maxInserted: number,
* maxDeleted: number,
* maxAdditionWidth: number,
* maxDeletionWidth: number,
* deletionOffset: number,
* }}
*/
Defs.LayoutStats;
Polymer({
is: 'gr-file-list',
/**
* Fired when a draft refresh should get triggered
*
* @event reload-drafts
*/
properties: {
/** @type {?} */
patchRange: Object,
patchNum: String,
changeNum: String,
/** @type {?} */
changeComments: Object,
drafts: Object,
revisions: Array,
projectConfig: Object,
selectedIndex: {
type: Number,
notify: true,
},
keyEventTarget: {
type: Object,
value() { return document.body; },
},
/** @type {?} */
change: Object,
diffViewMode: {
type: String,
notify: true,
observer: '_updateDiffPreferences',
},
editMode: {
type: Boolean,
observer: '_editModeChanged',
},
filesExpanded: {
type: String,
value: GrFileListConstants.FilesExpandedState.NONE,
notify: true,
},
_filesByPath: Object,
_files: {
type: Array,
observer: '_filesChanged',
value() { return []; },
},
_loggedIn: {
type: Boolean,
value: false,
},
_reviewed: {
type: Array,
value() { return []; },
},
diffPrefs: {
type: Object,
notify: true,
observer: '_updateDiffPreferences',
},
/** @type {?} */
_userPrefs: Object,
_localPrefs: Object,
_showInlineDiffs: Boolean,
numFilesShown: {
type: Number,
notify: true,
},
/** @type {?} */
_patchChange: {
type: Object,
computed: '_calculatePatchChange(_files)',
},
fileListIncrement: Number,
_hideChangeTotals: {
type: Boolean,
computed: '_shouldHideChangeTotals(_patchChange)',
},
_hideBinaryChangeTotals: {
type: Boolean,
computed: '_shouldHideBinaryChangeTotals(_patchChange)',
},
_shownFiles: {
type: Array,
computed: '_computeFilesShown(numFilesShown, _files.*)',
},
/**
* The amount of files added to the shown files list the last time it was
* updated. This is used for reporting the average render time.
*/
_reportinShownFilesIncrement: Number,
_expandedFilePaths: {
type: Array,
value() { return []; },
},
_displayLine: Boolean,
_loading: {
type: Boolean,
observer: '_loadingChanged',
},
/** @type {Defs.LayoutStats|undefined} */
_sizeBarLayout: {
type: Object,
computed: '_computeSizeBarLayout(_shownFiles.*)',
},
_showSizeBars: {
type: Boolean,
value: true,
computed: '_computeShowSizeBars(_userPrefs)',
},
/** @type {Function} */
_cancelForEachDiff: Function,
},
behaviors: [
Gerrit.AsyncForeachBehavior,
Gerrit.DomUtilBehavior,
Gerrit.KeyboardShortcutBehavior,
Gerrit.PatchSetBehavior,
Gerrit.PathListBehavior,
],
observers: [
'_expandedPathsChanged(_expandedFilePaths.splices)',
'_computeFiles(_filesByPath, changeComments, patchRange, _reviewed, ' +
'_loading)',
],
keyBindings: {
esc: '_handleEscKey',
},
keyboardShortcuts() {
return {
[this.Shortcut.LEFT_PANE]: '_handleLeftPane',
[this.Shortcut.RIGHT_PANE]: '_handleRightPane',
[this.Shortcut.TOGGLE_INLINE_DIFF]: '_handleToggleInlineDiff',
[this.Shortcut.TOGGLE_ALL_INLINE_DIFFS]: '_handleToggleAllInlineDiffs',
[this.Shortcut.CURSOR_NEXT_FILE]: '_handleCursorNext',
[this.Shortcut.CURSOR_PREV_FILE]: '_handleCursorPrev',
[this.Shortcut.NEXT_LINE]: '_handleCursorNext',
[this.Shortcut.PREV_LINE]: '_handleCursorPrev',
[this.Shortcut.NEW_COMMENT]: '_handleNewComment',
[this.Shortcut.OPEN_LAST_FILE]: '_handleOpenLastFile',
[this.Shortcut.OPEN_FIRST_FILE]: '_handleOpenFirstFile',
[this.Shortcut.OPEN_FILE]: '_handleOpenFile',
[this.Shortcut.NEXT_CHUNK]: '_handleNextChunk',
[this.Shortcut.PREV_CHUNK]: '_handlePrevChunk',
[this.Shortcut.TOGGLE_FILE_REVIEWED]: '_handleToggleFileReviewed',
[this.Shortcut.TOGGLE_LEFT_PANE]: '_handleToggleLeftPane',
// Final two are actually handled by gr-diff-comment-thread.
[this.Shortcut.EXPAND_ALL_COMMENT_THREADS]: null,
[this.Shortcut.COLLAPSE_ALL_COMMENT_THREADS]: null,
};
},
listeners: {
keydown: '_scopedKeydownHandler',
},
detached() {
this._cancelDiffs();
},
/**
* Iron-a11y-keys-behavior catches keyboard events globally. Some keyboard
* events must be scoped to a component level (e.g. `enter`) in order to not
* override native browser functionality.
*
* Context: Issue 7277
*/
_scopedKeydownHandler(e) {
if (e.keyCode === 13) {
// Enter.
this._handleOpenFile(e);
}
},
reload() {
if (!this.changeNum || !this.patchRange.patchNum) {
return Promise.resolve();
}
this._loading = true;
this.collapseAllDiffs();
const promises = [];
promises.push(this._getFiles().then(filesByPath => {
this._filesByPath = filesByPath;
}));
promises.push(this._getLoggedIn().then(loggedIn => {
return this._loggedIn = loggedIn;
}).then(loggedIn => {
if (!loggedIn) { return; }
return this._getReviewedFiles().then(reviewed => {
this._reviewed = reviewed;
});
}));
this._localPrefs = this.$.storage.getPreferences();
promises.push(this._getDiffPreferences().then(prefs => {
this.diffPrefs = prefs;
}));
promises.push(this._getPreferences().then(prefs => {
this._userPrefs = prefs;
}));
return Promise.all(promises).then(() => {
this._loading = false;
this._detectChromiteButler();
this.$.reporting.fileListDisplayed();
});
},
_detectChromiteButler() {
const hasButler = !!document.getElementById('butler-suggested-owners');
if (hasButler) {
this.$.reporting.reportExtension('butler');
}
},
get diffs() {
return Polymer.dom(this.root).querySelectorAll('gr-diff-host');
},
openDiffPrefs() {
this.$.diffPreferences.open();
},
_calculatePatchChange(files) {
const filesNoCommitMsg = files.filter(files => {
return files.__path !== '/COMMIT_MSG';
});
return filesNoCommitMsg.reduce((acc, obj) => {
const inserted = obj.lines_inserted ? obj.lines_inserted : 0;
const deleted = obj.lines_deleted ? obj.lines_deleted : 0;
const total_size = (obj.size && obj.binary) ? obj.size : 0;
const size_delta_inserted =
obj.binary && obj.size_delta > 0 ? obj.size_delta : 0;
const size_delta_deleted =
obj.binary && obj.size_delta < 0 ? obj.size_delta : 0;
return {
inserted: acc.inserted + inserted,
deleted: acc.deleted + deleted,
size_delta_inserted: acc.size_delta_inserted + size_delta_inserted,
size_delta_deleted: acc.size_delta_deleted + size_delta_deleted,
total_size: acc.total_size + total_size,
};
}, {inserted: 0, deleted: 0, size_delta_inserted: 0,
size_delta_deleted: 0, total_size: 0});
},
_getDiffPreferences() {
return this.$.restAPI.getDiffPreferences();
},
_getPreferences() {
return this.$.restAPI.getPreferences();
},
_togglePathExpanded(path) {
// Is the path in the list of expanded diffs? IF so remove it, otherwise
// add it to the list.
const pathIndex = this._expandedFilePaths.indexOf(path);
if (pathIndex === -1) {
this.push('_expandedFilePaths', path);
} else {
this.splice('_expandedFilePaths', pathIndex, 1);
}
},
_togglePathExpandedByIndex(index) {
this._togglePathExpanded(this._files[index].__path);
},
_updateDiffPreferences() {
if (!this.diffs.length) { return; }
// Re-render all expanded diffs sequentially.
this.$.reporting.time(EXPAND_ALL_TIMING_LABEL);
this._renderInOrder(this._expandedFilePaths, this.diffs,
this._expandedFilePaths.length);
},
_forEachDiff(fn) {
const diffs = this.diffs;
for (let i = 0; i < diffs.length; i++) {
fn(diffs[i]);
}
},
expandAllDiffs() {
this._showInlineDiffs = true;
// Find the list of paths that are in the file list, but not in the
// expanded list.
const newPaths = [];
let path;
for (let i = 0; i < this._shownFiles.length; i++) {
path = this._shownFiles[i].__path;
if (!this._expandedFilePaths.includes(path)) {
newPaths.push(path);
}
}
this.splice(...['_expandedFilePaths', 0, 0].concat(newPaths));
},
collapseAllDiffs() {
this._showInlineDiffs = false;
this._expandedFilePaths = [];
this.filesExpanded = this._computeExpandedFiles(
this._expandedFilePaths.length, this._files.length);
this.$.diffCursor.handleDiffUpdate();
},
/**
* Computes a string with the number of comments and unresolved comments.
*
* @param {!Object} changeComments
* @param {!Object} patchRange
* @param {string} path
* @return {string}
*/
_computeCommentsString(changeComments, patchRange, path) {
const unresolvedCount =
changeComments.computeUnresolvedNum(patchRange.basePatchNum, path) +
changeComments.computeUnresolvedNum(patchRange.patchNum, path);
const commentCount =
changeComments.computeCommentCount(patchRange.basePatchNum, path) +
changeComments.computeCommentCount(patchRange.patchNum, path);
const commentString = GrCountStringFormatter.computePluralString(
commentCount, 'comment');
const unresolvedString = GrCountStringFormatter.computeString(
unresolvedCount, 'unresolved');
return commentString +
// Add a space if both comments and unresolved
(commentString && unresolvedString ? ' ' : '') +
// Add parentheses around unresolved if it exists.
(unresolvedString ? `(${unresolvedString})` : '');
},
/**
* Computes a string with the number of drafts.
*
* @param {!Object} changeComments
* @param {!Object} patchRange
* @param {string} path
* @return {string}
*/
_computeDraftsString(changeComments, patchRange, path) {
const draftCount =
changeComments.computeDraftCount(patchRange.basePatchNum, path) +
changeComments.computeDraftCount(patchRange.patchNum, path);
return GrCountStringFormatter.computePluralString(draftCount, 'draft');
},
/**
* Computes a shortened string with the number of drafts.
*
* @param {!Object} changeComments
* @param {!Object} patchRange
* @param {string} path
* @return {string}
*/
_computeDraftsStringMobile(changeComments, patchRange, path) {
const draftCount =
changeComments.computeDraftCount(patchRange.basePatchNum, path) +
changeComments.computeDraftCount(patchRange.patchNum, path);
return GrCountStringFormatter.computeShortString(draftCount, 'd');
},
/**
* Computes a shortened string with the number of comments.
*
* @param {!Object} changeComments
* @param {!Object} patchRange
* @param {string} path
* @return {string}
*/
_computeCommentsStringMobile(changeComments, patchRange, path) {
const commentCount =
changeComments.computeCommentCount(patchRange.basePatchNum, path) +
changeComments.computeCommentCount(patchRange.patchNum, path);
return GrCountStringFormatter.computeShortString(commentCount, 'c');
},
/**
* @param {string} path
* @param {boolean=} opt_reviewed
*/
_reviewFile(path, opt_reviewed) {
if (this.editMode) { return; }
const index = this._files.findIndex(file => file.__path === path);
const reviewed = opt_reviewed || !this._files[index].isReviewed;
this.set(['_files', index, 'isReviewed'], reviewed);
if (index < this._shownFiles.length) {
this.set(['_shownFiles', index, 'isReviewed'], reviewed);
}
this._saveReviewedState(path, reviewed);
},
_saveReviewedState(path, reviewed) {
return this.$.restAPI.saveFileReviewed(this.changeNum,
this.patchRange.patchNum, path, reviewed);
},
_getLoggedIn() {
return this.$.restAPI.getLoggedIn();
},
_getReviewedFiles() {
if (this.editMode) { return Promise.resolve([]); }
return this.$.restAPI.getReviewedFiles(this.changeNum,
this.patchRange.patchNum);
},
_getFiles() {
return this.$.restAPI.getChangeOrEditFiles(
this.changeNum, this.patchRange);
},
/**
* The closure compiler doesn't realize this.specialFilePathCompare is
* valid.
* @suppress {checkTypes}
*/
_normalizeChangeFilesResponse(response) {
if (!response) { return []; }
const paths = Object.keys(response).sort(this.specialFilePathCompare);
const files = [];
for (let i = 0; i < paths.length; i++) {
const info = response[paths[i]];
info.__path = paths[i];
info.lines_inserted = info.lines_inserted || 0;
info.lines_deleted = info.lines_deleted || 0;
files.push(info);
}
return files;
},
/**
* Handle all events from the file list dom-repeat so event handleers don't
* have to get registered for potentially very long lists.
*/
_handleFileListTap(e) {
// Traverse upwards to find the row element if the target is not the row.
let row = e.target;
while (!row.classList.contains('row') && row.parentElement) {
row = row.parentElement;
}
const path = row.dataset.path;
// Handle checkbox mark as reviewed.
if (e.target.classList.contains('markReviewed')) {
e.preventDefault();
return this._reviewFile(path);
}
// If a path cannot be interpreted from the click target (meaning it's not
// somewhere in the row, e.g. diff content) or if the user clicked the
// link, defer to the native behavior.
if (!path || this.descendedFromClass(e.target, 'pathLink')) { return; }
// Disregard the event if the click target is in the edit controls.
if (this.descendedFromClass(e.target, 'editFileControls')) { return; }
e.preventDefault();
this._togglePathExpanded(path);
},
_handleLeftPane(e) {
if (this.shouldSuppressKeyboardShortcut(e) || this._noDiffsExpanded()) {
return;
}
e.preventDefault();
this.$.diffCursor.moveLeft();
},
_handleRightPane(e) {
if (this.shouldSuppressKeyboardShortcut(e) || this._noDiffsExpanded()) {
return;
}
e.preventDefault();
this.$.diffCursor.moveRight();
},
_handleToggleInlineDiff(e) {
if (this.shouldSuppressKeyboardShortcut(e) ||
this.modifierPressed(e) ||
this.$.fileCursor.index === -1) { return; }
e.preventDefault();
this._togglePathExpandedByIndex(this.$.fileCursor.index);
},
_handleToggleAllInlineDiffs(e) {
if (this.shouldSuppressKeyboardShortcut(e)) { return; }
e.preventDefault();
this._toggleInlineDiffs();
},
_handleCursorNext(e) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
if (this._showInlineDiffs) {
e.preventDefault();
this.$.diffCursor.moveDown();
this._displayLine = true;
} else {
// Down key
if (this.getKeyboardEvent(e).keyCode === 40) { return; }
e.preventDefault();
this.$.fileCursor.next();
this.selectedIndex = this.$.fileCursor.index;
}
},
_handleCursorPrev(e) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
if (this._showInlineDiffs) {
e.preventDefault();
this.$.diffCursor.moveUp();
this._displayLine = true;
} else {
// Up key
if (this.getKeyboardEvent(e).keyCode === 38) { return; }
e.preventDefault();
this.$.fileCursor.previous();
this.selectedIndex = this.$.fileCursor.index;
}
},
_handleNewComment(e) {
if (this.shouldSuppressKeyboardShortcut(e) ||
this.modifierPressed(e)) { return; }
const isRangeSelected = this.diffs.some(diff => {
return diff.isRangeSelected();
}, this);
if (!isRangeSelected) {
e.preventDefault();
this._addDraftAtTarget();
}
},
_handleOpenLastFile(e) {
// Check for meta key to avoid overriding native chrome shortcut.
if (this.shouldSuppressKeyboardShortcut(e) ||
this.getKeyboardEvent(e).metaKey) { return; }
e.preventDefault();
this._openSelectedFile(this._files.length - 1);
},
_handleOpenFirstFile(e) {
// Check for meta key to avoid overriding native chrome shortcut.
if (this.shouldSuppressKeyboardShortcut(e) ||
this.getKeyboardEvent(e).metaKey) { return; }
e.preventDefault();
this._openSelectedFile(0);
},
_handleOpenFile(e) {
if (this.shouldSuppressKeyboardShortcut(e) ||
this.modifierPressed(e)) { return; }
e.preventDefault();
if (this._showInlineDiffs) {
this._openCursorFile();
return;
}
this._openSelectedFile();
},
_handleNextChunk(e) {
if (this.shouldSuppressKeyboardShortcut(e) ||
(this.modifierPressed(e) && !this.isModifierPressed(e, 'shiftKey')) ||
this._noDiffsExpanded()) {
return;
}
e.preventDefault();
if (this.isModifierPressed(e, 'shiftKey')) {
this.$.diffCursor.moveToNextCommentThread();
} else {
this.$.diffCursor.moveToNextChunk();
}
},
_handlePrevChunk(e) {
if (this.shouldSuppressKeyboardShortcut(e) ||
(this.modifierPressed(e) && !this.isModifierPressed(e, 'shiftKey')) ||
this._noDiffsExpanded()) {
return;
}
e.preventDefault();
if (this.isModifierPressed(e, 'shiftKey')) {
this.$.diffCursor.moveToPreviousCommentThread();
} else {
this.$.diffCursor.moveToPreviousChunk();
}
},
_handleToggleFileReviewed(e) {
if (this.shouldSuppressKeyboardShortcut(e) || this.modifierPressed(e)) {
return;
}
e.preventDefault();
if (!this._files[this.$.fileCursor.index]) { return; }
this._reviewFile(this._files[this.$.fileCursor.index].__path);
},
_handleToggleLeftPane(e) {
if (this.shouldSuppressKeyboardShortcut(e)) { return; }
e.preventDefault();
this._forEachDiff(diff => {
diff.toggleLeftDiff();
});
},
_toggleInlineDiffs() {
if (this._showInlineDiffs) {
this.collapseAllDiffs();
} else {
this.expandAllDiffs();
}
},
_openCursorFile() {
const diff = this.$.diffCursor.getTargetDiffElement();
Gerrit.Nav.navigateToDiff(this.change, diff.path,
diff.patchRange.patchNum, this.patchRange.basePatchNum);
},
/**
* @param {number=} opt_index
*/
_openSelectedFile(opt_index) {
if (opt_index != null) {
this.$.fileCursor.setCursorAtIndex(opt_index);
}
if (!this._files[this.$.fileCursor.index]) { return; }
Gerrit.Nav.navigateToDiff(this.change,
this._files[this.$.fileCursor.index].__path, this.patchRange.patchNum,
this.patchRange.basePatchNum);
},
_addDraftAtTarget() {
const diff = this.$.diffCursor.getTargetDiffElement();
const target = this.$.diffCursor.getTargetLineElement();
if (diff && target) {
diff.addDraftAtLine(target);
}
},
_shouldHideChangeTotals(_patchChange) {
return _patchChange.inserted === 0 && _patchChange.deleted === 0;
},
_shouldHideBinaryChangeTotals(_patchChange) {
return _patchChange.size_delta_inserted === 0 &&
_patchChange.size_delta_deleted === 0;
},
_computeFileStatus(status) {
return status || 'M';
},
_computeDiffURL(change, patchNum, basePatchNum, path, editMode) {
// TODO(kaspern): Fix editing for commit messages and merge lists.
if (editMode && path !== this.COMMIT_MESSAGE_PATH &&
path !== this.MERGE_LIST_PATH) {
return Gerrit.Nav.getEditUrlForDiff(change, path, patchNum,
basePatchNum);
}
return Gerrit.Nav.getUrlForDiff(change, path, patchNum, basePatchNum);
},
_formatBytes(bytes) {
if (bytes == 0) return '+/-0 B';
const bits = 1024;
const decimals = 1;
const sizes =
['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
const exponent = Math.floor(Math.log(Math.abs(bytes)) / Math.log(bits));
const prepend = bytes > 0 ? '+' : '';
return prepend + parseFloat((bytes / Math.pow(bits, exponent))
.toFixed(decimals)) + ' ' + sizes[exponent];
},
_formatPercentage(size, delta) {
const oldSize = size - delta;
if (oldSize === 0) { return ''; }
const percentage = Math.round(Math.abs(delta * 100 / oldSize));
return '(' + (delta > 0 ? '+' : '-') + percentage + '%)';
},
_computeBinaryClass(delta) {
if (delta === 0) { return; }
return delta >= 0 ? 'added' : 'removed';
},
/**
* @param {string} baseClass
* @param {string} path
*/
_computeClass(baseClass, path) {
const classes = [baseClass];
if (path === this.COMMIT_MESSAGE_PATH || path === this.MERGE_LIST_PATH) {
classes.push('invisible');
}
return classes.join(' ');
},
_computePathClass(path, expandedFilesRecord) {
return this._isFileExpanded(path, expandedFilesRecord) ? 'expanded' : '';
},
_computeShowHideIcon(path, expandedFilesRecord) {
return this._isFileExpanded(path, expandedFilesRecord) ?
'gr-icons:expand-less' : 'gr-icons:expand-more';
},
_computeFiles(filesByPath, changeComments, patchRange, reviewed, loading) {
// Await all promises resolving from reload. @See Issue 9057
if (loading) { return; }
const commentedPaths = changeComments.getPaths(patchRange);
const files = Object.assign({}, filesByPath);
Object.keys(commentedPaths).forEach(commentedPath => {
if (files.hasOwnProperty(commentedPath)) { return; }
files[commentedPath] = {status: 'U'};
});
const reviewedSet = new Set(reviewed || []);
for (const filePath in files) {
if (!files.hasOwnProperty(filePath)) { continue; }
files[filePath].isReviewed = reviewedSet.has(filePath);
}
this._files = this._normalizeChangeFilesResponse(files);
},
_computeFilesShown(numFilesShown, files) {
const previousNumFilesShown = this._shownFiles ?
this._shownFiles.length : 0;
const filesShown = files.base.slice(0, numFilesShown);
this.fire('files-shown-changed', {length: filesShown.length});
// Start the timer for the rendering work hwere because this is where the
// _shownFiles property is being set, and _shownFiles is used in the
// dom-repeat binding.
this.$.reporting.time(RENDER_TIMING_LABEL);
// How many more files are being shown (if it's an increase).
this._reportinShownFilesIncrement =
Math.max(0, filesShown.length - previousNumFilesShown);
return filesShown;
},
_updateDiffCursor() {
// Overwrite the cursor's list of diffs:
this.$.diffCursor.splice(
...['diffs', 0, this.$.diffCursor.diffs.length].concat(this.diffs));
},
_filesChanged() {
Polymer.dom.flush();
const files = Polymer.dom(this.root).querySelectorAll('.file-row');
this.$.fileCursor.stops = files;
this.$.fileCursor.setCursorAtIndex(this.selectedIndex, true);
},
_incrementNumFilesShown() {
this.numFilesShown += this.fileListIncrement;
},
_computeFileListControlClass(numFilesShown, files) {
return numFilesShown >= files.length ? 'invisible' : '';
},
_computeIncrementText(numFilesShown, files) {
if (!files) { return ''; }
const text =
Math.min(this.fileListIncrement, files.length - numFilesShown);
return 'Show ' + text + ' more';
},
_computeShowAllText(files) {
if (!files) { return ''; }
return 'Show all ' + files.length + ' files';
},
_computeWarnShowAll(files) {
return files.length > WARN_SHOW_ALL_THRESHOLD;
},
_computeShowAllWarning(files) {
if (!this._computeWarnShowAll(files)) { return ''; }
return 'Warning: showing all ' + files.length +
' files may take several seconds.';
},
_showAllFiles() {
this.numFilesShown = this._files.length;
},
_computePatchSetDescription(revisions, patchNum) {
const rev = this.getRevisionByPatchNum(revisions, patchNum);
return (rev && rev.description) ?
rev.description.substring(0, PATCH_DESC_MAX_LENGTH) : '';
},
/**
* Get a descriptive label for use in the status indicator's tooltip and
* ARIA label.
* @param {string} status
* @return {string}
*/
_computeFileStatusLabel(status) {
const statusCode = this._computeFileStatus(status);
return FileStatus.hasOwnProperty(statusCode) ?
FileStatus[statusCode] : 'Status Unknown';
},
_isFileExpanded(path, expandedFilesRecord) {
return expandedFilesRecord.base.includes(path);
},
_onLineSelected(e, detail) {
this.$.diffCursor.moveToLineNumber(detail.number, detail.side,
detail.path);
},
_computeExpandedFiles(expandedCount, totalCount) {
if (expandedCount === 0) {
return GrFileListConstants.FilesExpandedState.NONE;
} else if (expandedCount === totalCount) {
return GrFileListConstants.FilesExpandedState.ALL;
}
return GrFileListConstants.FilesExpandedState.SOME;
},
/**
* Handle splices to the list of expanded file paths. If there are any new
* entries in the expanded list, then render each diff corresponding in
* order by waiting for the previous diff to finish before starting the next
* one.
* @param {!Array} record The splice record in the expanded paths list.
*/
_expandedPathsChanged(record) {
// Clear content for any diffs that are not open so if they get re-opened
// the stale content does not flash before it is cleared and reloaded.
const collapsedDiffs = this.diffs.filter(diff =>
this._expandedFilePaths.indexOf(diff.path) === -1);
this._clearCollapsedDiffs(collapsedDiffs);
if (!record) { return; } // Happens after "Collapse all" clicked.
this.filesExpanded = this._computeExpandedFiles(
this._expandedFilePaths.length, this._files.length);
// Find the paths introduced by the new index splices:
const newPaths = record.indexSplices
.map(splice => splice.object.slice(
splice.index, splice.index + splice.addedCount))
.reduce((acc, paths) => acc.concat(paths), []);
// Required so that the newly created diff view is included in this.diffs.
Polymer.dom.flush();
this.$.reporting.time(EXPAND_ALL_TIMING_LABEL);
if (newPaths.length) {
this._renderInOrder(newPaths, this.diffs, newPaths.length);
}
this._updateDiffCursor();
this.$.diffCursor.handleDiffUpdate();
},
_clearCollapsedDiffs(collapsedDiffs) {
for (const diff of collapsedDiffs) {
diff.cancel();
diff.clearDiffContent();
}
},
/**
* Given an array of paths and a NodeList of diff elements, render the diff
* for each path in order, awaiting the previous render to complete before
* continung.
* @param {!Array<string>} paths
* @param {!NodeList<!Object>} diffElements (GrDiffHostElement)
* @param {number} initialCount The total number of paths in the pass. This
* is used to generate log messages.
* @return {!Promise}
*/
_renderInOrder(paths, diffElements, initialCount) {
let iter = 0;
return (new Promise(resolve => {
this.fire('reload-drafts', {resolve});
})).then(() => {
return this.asyncForeach(paths, (path, cancel) => {
this._cancelForEachDiff = cancel;
iter++;
console.log('Expanding diff', iter, 'of', initialCount, ':',
path);
const diffElem = this._findDiffByPath(path, diffElements);
diffElem.comments = this.changeComments.getCommentsBySideForPath(
path, this.patchRange, this.projectConfig);
const promises = [diffElem.reload()];
if (this._loggedIn && !this.diffPrefs.manual_review) {
promises.push(this._reviewFile(path, true));
}
return Promise.all(promises);
}).then(() => {
this._cancelForEachDiff = null;
this._nextRenderParams = null;
console.log('Finished expanding', initialCount, 'diff(s)');
this.$.reporting.timeEndWithAverage(EXPAND_ALL_TIMING_LABEL,
EXPAND_ALL_AVG_TIMING_LABEL, initialCount);
this.$.diffCursor.handleDiffUpdate();
});
});
},
/** Cancel the rendering work of every diff in the list */
_cancelDiffs() {
if (this._cancelForEachDiff) { this._cancelForEachDiff(); }
this._forEachDiff(d => d.cancel());
},
/**
* In the given NodeList of diff elements, find the diff for the given path.
* @param {string} path
* @param {!NodeList<!Object>} diffElements (GrDiffElement)
* @return {!Object|undefined} (GrDiffElement)
*/
_findDiffByPath(path, diffElements) {
for (let i = 0; i < diffElements.length; i++) {
if (diffElements[i].path === path) {
return diffElements[i];
}
}
},
/**
* Reset the comments of a modified thread
* @param {string} rootId
* @param {string} path
*/
reloadCommentsForThreadWithRootId(rootId, path) {
// Don't bother continuing if we already know that the path that contains
// the updated comment thread is not expanded.
if (!this._expandedFilePaths.includes(path)) { return; }
const diff = this.diffs.find(d => d.path === path);
const threadEl = diff.getThreadEls().find(t => t.rootId === rootId);
if (!threadEl) { return; }
const newComments = this.changeComments.getCommentsForThread(rootId);
// If newComments is null, it means that a single draft was
// removed from a thread in the thread view, and the thread should
// no longer exist. Remove the existing thread element in the diff
// view.
if (!newComments) {
threadEl.fireRemoveSelf();
return;
}
// Comments are not returned with the commentSide attribute from
// the api, but it's necessary to be stored on the diff's
// comments due to use in the _handleCommentUpdate function.
// The comment thread already has a side associated with it, so
// set the comment's side to match.
threadEl.comments = newComments.map(c => {
return Object.assign(c, {__commentSide: threadEl.commentSide});
});
Polymer.dom.flush();
return;
},
_handleEscKey(e) {
if (this.shouldSuppressKeyboardShortcut(e) ||
this.modifierPressed(e)) { return; }
e.preventDefault();
this._displayLine = false;
},
/**
* Update the loading class for the file list rows. The update is inside a
* debouncer so that the file list doesn't flash gray when the API requests
* are reasonably fast.
* @param {boolean} loading
*/
_loadingChanged(loading) {
this.debounce('loading-change', () => {
// Only show set the loading if there have been files loaded to show. In
// this way, the gray loading style is not shown on initial loads.
this.classList.toggle('loading', loading && !!this._files.length);
}, LOADING_DEBOUNCE_INTERVAL);
},
_editModeChanged(editMode) {
this.classList.toggle('editMode', editMode);
},
_computeReviewedClass(isReviewed) {
return isReviewed ? 'isReviewed' : '';
},
_computeReviewedText(isReviewed) {
return isReviewed ? 'MARK UNREVIEWED' : 'MARK REVIEWED';
},
/**
* Given a file path, return whether that path should have visible size bars
* and be included in the size bars calculation.
* @param {string} path
* @return {boolean}
*/
_showBarsForPath(path) {
return path !== this.COMMIT_MESSAGE_PATH && path !== this.MERGE_LIST_PATH;
},
/**
* Compute size bar layout values from the file list.
* @return {Defs.LayoutStats|undefined}
*/
_computeSizeBarLayout(shownFilesRecord) {
if (!shownFilesRecord || !shownFilesRecord.base) { return undefined; }
const stats = {
maxInserted: 0,
maxDeleted: 0,
maxAdditionWidth: 0,
maxDeletionWidth: 0,
deletionOffset: 0,
};
shownFilesRecord.base
.filter(f => this._showBarsForPath(f.__path))
.forEach(f => {
if (f.lines_inserted) {
stats.maxInserted = Math.max(stats.maxInserted, f.lines_inserted);
}
if (f.lines_deleted) {
stats.maxDeleted = Math.max(stats.maxDeleted, f.lines_deleted);
}
});
const ratio = stats.maxInserted / (stats.maxInserted + stats.maxDeleted);
if (!isNaN(ratio)) {
stats.maxAdditionWidth =
(SIZE_BAR_MAX_WIDTH - SIZE_BAR_GAP_WIDTH) * ratio;
stats.maxDeletionWidth =
SIZE_BAR_MAX_WIDTH - SIZE_BAR_GAP_WIDTH - stats.maxAdditionWidth;
stats.deletionOffset = stats.maxAdditionWidth + SIZE_BAR_GAP_WIDTH;
}
return stats;
},
/**
* Get the width of the addition bar for a file.
* @param {Object} file
* @param {Defs.LayoutStats} stats
* @return {number}
*/
_computeBarAdditionWidth(file, stats) {
if (stats.maxInserted === 0 ||
!file.lines_inserted ||
!this._showBarsForPath(file.__path)) {
return 0;
}
const width =
stats.maxAdditionWidth * file.lines_inserted / stats.maxInserted;
return width === 0 ? 0 : Math.max(SIZE_BAR_MIN_WIDTH, width);
},
/**
* Get the x-offset of the addition bar for a file.
* @param {Object} file
* @param {Defs.LayoutStats} stats
* @return {number}
*/
_computeBarAdditionX(file, stats) {
return stats.maxAdditionWidth -
this._computeBarAdditionWidth(file, stats);
},
/**
* Get the width of the deletion bar for a file.
* @param {Object} file
* @param {Defs.LayoutStats} stats
* @return {number}
*/
_computeBarDeletionWidth(file, stats) {
if (stats.maxDeleted === 0 ||
!file.lines_deleted ||
!this._showBarsForPath(file.__path)) {
return 0;
}
const width =
stats.maxDeletionWidth * file.lines_deleted / stats.maxDeleted;
return width === 0 ? 0 : Math.max(SIZE_BAR_MIN_WIDTH, width);
},
/**
* Get the x-offset of the deletion bar for a file.
* @param {Defs.LayoutStats} stats
* @return {number}
*/
_computeBarDeletionX(stats) {
return stats.deletionOffset;
},
_computeShowSizeBars(userPrefs) {
return !!userPrefs.size_bar_in_change_table;
},
_computeSizeBarsClass(showSizeBars, path) {
let hideClass = '';
if (!showSizeBars) {
hideClass = 'hide';
} else if (!this._showBarsForPath(path)) {
hideClass = 'invisible';
}
return `sizeBars desktop ${hideClass}`;
},
/**
* Returns true if none of the inline diffs have been expanded.
* @return {boolean}
*/
_noDiffsExpanded() {
return this.filesExpanded === GrFileListConstants.FilesExpandedState.NONE;
},
/**
* Method to call via binding when each file list row is rendered. This
* allows approximate detection of when the dom-repeat has completed
* rendering.
* @param {number} index The index of the row being rendered.
* @return {string} an empty string.
*/
_reportRenderedRow(index) {
if (index === this._shownFiles.length - 1) {
this.async(() => {
this.$.reporting.timeEndWithAverage(RENDER_TIMING_LABEL,
RENDER_AVG_TIMING_LABEL, this._reportinShownFilesIncrement);
}, 1);
}
return '';
},
});
})();