/**
* @license
* Copyright The Closure Library Authors.
* SPDX-License-Identifier: Apache-2.0
*/
/**
* @fileoverview Gmail-like AutoComplete logic.
*
* @see ../../demos/autocomplete-basic.html
*/
goog.provide('goog.ui.ac.AutoComplete');
goog.provide('goog.ui.ac.AutoComplete.EventType');
goog.require('goog.asserts');
goog.require('goog.events');
goog.require('goog.events.EventTarget');
goog.require('goog.object');
goog.require('goog.ui.ac.RenderOptions');
goog.requireType('goog.events.Event');
goog.requireType('goog.ui.ac.InputHandler');
/**
* This is the central manager class for an AutoComplete instance. The matcher
* can specify disabled rows that should not be hilited or selected by
* implementing <code>isRowDisabled(row):boolean</code> for each autocomplete
* row. No row will be considered disabled if this method is not implemented.
*
* @param {Object} matcher A data source and row matcher, implements
* <code>requestMatchingRows(token, maxMatches, matchCallback)</code>.
* @param {goog.events.EventTarget} renderer An object that implements
* <code>
* isVisible():boolean<br>
* renderRows(rows:Array, token:string, target:Element);<br>
* hiliteId(row-id:number);<br>
* dismiss();<br>
* dispose():
* </code>.
* @param {Object} selectionHandler An object that implements
* <code>
* selectRow(row);<br>
* update(opt_force);
* </code>.
*
* @constructor
* @extends {goog.events.EventTarget}
* @suppress {underscore}
*/
goog.ui.ac.AutoComplete = function(matcher, renderer, selectionHandler) {
'use strict';
goog.events.EventTarget.call(this);
/**
* A data-source which provides autocomplete suggestions.
*
* TODO(chrishenry): Tighten the type to !goog.ui.ac.AutoComplete.Matcher.
*
* @type {Object}
* @protected
* @suppress {underscore|visibility}
*/
this.matcher_ = matcher;
/**
* A handler which interacts with the input DOM element (textfield, textarea,
* or richedit).
*
* TODO(chrishenry): Tighten the type to !Object.
*
* @type {Object}
* @protected
* @suppress {underscore|visibility}
*/
this.selectionHandler_ = selectionHandler;
/**
* A renderer to render/show/highlight/hide the autocomplete menu.
* @type {goog.events.EventTarget}
* @protected
* @suppress {underscore|visibility}
*/
this.renderer_ = renderer;
goog.events.listen(
renderer,
[
goog.ui.ac.AutoComplete.EventType.HILITE,
goog.ui.ac.AutoComplete.EventType.SELECT,
goog.ui.ac.AutoComplete.EventType.CANCEL_DISMISS,
goog.ui.ac.AutoComplete.EventType.DISMISS
],
this.handleEvent, false, this);
/**
* Currently typed token which will be used for completion.
* @type {?string}
* @protected
* @suppress {underscore|visibility}
*/
this.token_ = null;
/**
* Autocomplete suggestion items.
* @type {Array<?>}
* @protected
* @suppress {underscore|visibility}
*/
this.rows_ = [];
/**
* Id of the currently highlighted row.
* @type {number}
* @protected
* @suppress {underscore|visibility}
*/
this.hiliteId_ = -1;
/**
* Id of the first row in autocomplete menu. Note that new ids are assigned
* every time new suggestions are fetched.
*
* TODO(chrishenry): Figure out what subclass does with this value
* and whether we should expose a more proper API.
*
* @type {number}
* @protected
* @suppress {underscore|visibility}
*/
this.firstRowId_ = 0;
/**
* The target HTML node for displaying.
* @type {?Element}
* @protected
* @suppress {underscore|visibility}
*/
this.target_ = null;
/**
* The timer id for dismissing autocomplete menu with a delay.
* @type {?number}
* @private
*/
this.dismissTimer_ = null;
/**
* Mapping from text input element to the anchor element. If the
* mapping does not exist, the input element will act as the anchor
* element.
* @type {Object<Element>}
* @private
*/
this.inputToAnchorMap_ = {};
};
goog.inherits(goog.ui.ac.AutoComplete, goog.events.EventTarget);
/**
* The maximum number of matches that should be returned
* @type {number}
* @private
*/
goog.ui.ac.AutoComplete.prototype.maxMatches_ = 10;
/**
* True iff the first row should automatically be highlighted
* @type {boolean}
* @private
*/
goog.ui.ac.AutoComplete.prototype.autoHilite_ = true;
/**
* True iff the user can unhilight all rows by pressing the up arrow.
* @type {boolean}
* @private
*/
goog.ui.ac.AutoComplete.prototype.allowFreeSelect_ = false;
/**
* True iff item selection should wrap around from last to first. If
* allowFreeSelect_ is on in conjunction, there is a step of free selection
* before wrapping.
* @type {boolean}
* @private
*/
goog.ui.ac.AutoComplete.prototype.wrap_ = false;
/**
* Whether completion from suggestion triggers fetching new suggestion.
* @type {boolean}
* @private
*/
goog.ui.ac.AutoComplete.prototype.triggerSuggestionsOnUpdate_ = false;
/**
* Events associated with the autocomplete
* @enum {string}
*/
goog.ui.ac.AutoComplete.EventType = {
/** A row has been highlighted by the renderer */
ROW_HILITE: 'rowhilite',
// Note: The events below are used for internal autocomplete events only and
// should not be used in non-autocomplete code.
/** A row has been mouseovered and should be highlighted by the renderer. */
HILITE: 'hilite',
/** A row has been selected by the renderer */
SELECT: 'select',
/** A dismiss event has occurred */
DISMISS: 'dismiss',
/** Event that cancels a dismiss event */
CANCEL_DISMISS: 'canceldismiss',
/**
* Field value was updated. A row field is included and is non-null when a
* row has been selected. The value of the row typically includes fields:
* contactData and formattedValue as well as a toString function (though none
* of these fields are guaranteed to exist). The row field may be used to
* return custom-type row data.
*/
UPDATE: 'update',
/**
* The list of suggestions has been updated, usually because either the list
* has opened, or because the user has typed another character and the
* suggestions have been updated, or the user has dismissed the autocomplete.
*/
SUGGESTIONS_UPDATE: 'suggestionsupdate'
};
/**
* @typedef {{
* requestMatchingRows:(!Function|undefined),
* isRowDisabled:(!Function|undefined)
* }}
*/
goog.ui.ac.AutoComplete.Matcher;
/**
* @return {!Object} The data source providing the `autocomplete
* suggestions.
*/
goog.ui.ac.AutoComplete.prototype.getMatcher = function() {
'use strict';
return goog.asserts.assert(this.matcher_);
};
/**
* Sets the data source providing the autocomplete suggestions.
*
* See constructor documentation for the interface.
*
* @param {!Object} matcher The matcher.
* @protected
*/
goog.ui.ac.AutoComplete.prototype.setMatcher = function(matcher) {
'use strict';
this.matcher_ = matcher;
};
/**
* @return {!Object} The handler used to interact with the input DOM
* element (textfield, textarea, or richedit), e.g. to update the
* input DOM element with selected value.
* @protected
*/
goog.ui.ac.AutoComplete.prototype.getSelectionHandler = function() {
'use strict';
return goog.asserts.assert(this.selectionHandler_);
};
/**
* @return {goog.events.EventTarget} The renderer that
* renders/shows/highlights/hides the autocomplete menu.
* See constructor documentation for the expected renderer API.
*/
goog.ui.ac.AutoComplete.prototype.getRenderer = function() {
'use strict';
return this.renderer_;
};
/**
* Sets the renderer that renders/shows/highlights/hides the autocomplete
* menu.
*
* See constructor documentation for the expected renderer API.
*
* @param {goog.events.EventTarget} renderer The renderer.
* @protected
*/
goog.ui.ac.AutoComplete.prototype.setRenderer = function(renderer) {
'use strict';
this.renderer_ = renderer;
};
/**
* @return {?string} The currently typed token used for completion.
* @protected
*/
goog.ui.ac.AutoComplete.prototype.getToken = function() {
'use strict';
return this.token_;
};
/**
* Sets the current token (without changing the rendered autocompletion).
*
* NOTE(chrishenry): This method will likely go away when we figure
* out a better API.
*
* @param {?string} token The new token.
* @protected
*/
goog.ui.ac.AutoComplete.prototype.setTokenInternal = function(token) {
'use strict';
this.token_ = token;
};
/**
* @param {number} index The suggestion index, must be within the
* interval [0, this.getSuggestionCount()).
* @return {Object} The currently suggested item at the given index
* (or null if there is none).
*/
goog.ui.ac.AutoComplete.prototype.getSuggestion = function(index) {
'use strict';
return this.rows_[index];
};
/**
* @return {!Array<?>} The current autocomplete suggestion items.
*/
goog.ui.ac.AutoComplete.prototype.getAllSuggestions = function() {
'use strict';
return goog.asserts.assert(this.rows_);
};
/**
* @return {number} The number of currently suggested items.
*/
goog.ui.ac.AutoComplete.prototype.getSuggestionCount = function() {
'use strict';
return this.rows_.length;
};
/**
* @return {number} The id (not index!) of the currently highlighted row.
*/
goog.ui.ac.AutoComplete.prototype.getHighlightedId = function() {
'use strict';
return this.hiliteId_;
};
/**
* Generic event handler that handles any events this object is listening to.
* @param {goog.events.Event} e Event Object.
* @suppress {missingProperties} e.row
*/
goog.ui.ac.AutoComplete.prototype.handleEvent = function(e) {
'use strict';
var matcher = /** @type {?goog.ui.ac.AutoComplete.Matcher} */ (this.matcher_);
if (e.target == this.renderer_) {
switch (e.type) {
case goog.ui.ac.AutoComplete.EventType.HILITE:
this.hiliteId(/** @type {number} */ (e.row));
break;
case goog.ui.ac.AutoComplete.EventType.SELECT:
var rowDisabled = false;
// e.row can be either a valid row id or empty.
if (typeof e.row === 'number') {
var rowId = e.row;
var index = this.getIndexOfId(rowId);
var row = this.rows_[index];
// Make sure the row selected is not a disabled row.
rowDisabled =
!!row && matcher.isRowDisabled && matcher.isRowDisabled(row);
if (row && !rowDisabled && this.hiliteId_ != rowId) {
// Event target row not currently highlighted - fix the mismatch.
this.hiliteId(rowId);
}
}
if (!rowDisabled) {
// Note that rowDisabled can be false even if e.row does not
// contain a valid row ID; at least one client depends on us
// proceeding anyway.
this.selectHilited();
}
break;
case goog.ui.ac.AutoComplete.EventType.CANCEL_DISMISS:
this.cancelDelayedDismiss();
break;
case goog.ui.ac.AutoComplete.EventType.DISMISS:
this.dismissOnDelay();
break;
}
}
};
/**
* Sets the max number of matches to fetch from the Matcher.
*
* @param {number} max Max number of matches.
*/
goog.ui.ac.AutoComplete.prototype.setMaxMatches = function(max) {
'use strict';
this.maxMatches_ = max;
};
/**
* Sets whether or not the first row should be highlighted by default.
*
* @param {boolean} autoHilite true iff the first row should be
* highlighted by default.
*/
goog.ui.ac.AutoComplete.prototype.setAutoHilite = function(autoHilite) {
'use strict';
this.autoHilite_ = autoHilite;
};
/**
* Sets whether or not the up/down arrow can unhilite all rows.
*
* @param {boolean} allowFreeSelect true iff the up arrow can unhilite all rows.
*/
goog.ui.ac.AutoComplete.prototype.setAllowFreeSelect = function(
allowFreeSelect) {
'use strict';
this.allowFreeSelect_ = allowFreeSelect;
};
/**
* Sets whether or not selections can wrap around the edges.
*
* @param {boolean} wrap true iff sections should wrap around the edges.
*/
goog.ui.ac.AutoComplete.prototype.setWrap = function(wrap) {
'use strict';
this.wrap_ = wrap;
};
/**
* Sets whether or not to request new suggestions immediately after completion
* of a suggestion.
*
* @param {boolean} triggerSuggestionsOnUpdate true iff completion should fetch
* new suggestions.
*/
goog.ui.ac.AutoComplete.prototype.setTriggerSuggestionsOnUpdate = function(
triggerSuggestionsOnUpdate) {
'use strict';
this.triggerSuggestionsOnUpdate_ = triggerSuggestionsOnUpdate;
};
/**
* Sets the token to match against. This triggers calls to the Matcher to
* fetch the matches (up to maxMatches), and then it triggers a call to
* <code>renderer.renderRows()</code>.
*
* @param {string} token The string for which to search in the Matcher.
* @param {string=} opt_fullString Optionally, the full string in the input
* field.
*/
goog.ui.ac.AutoComplete.prototype.setToken = function(token, opt_fullString) {
'use strict';
if (this.token_ == token) {
return;
}
this.token_ = token;
this.matcher_.requestMatchingRows(
this.token_, this.maxMatches_, goog.bind(this.matchListener_, this),
opt_fullString);
this.cancelDelayedDismiss();
};
/**
* Gets the current target HTML node for displaying autocomplete UI.
* @return {Element} The current target HTML node for displaying autocomplete
* UI.
*/
goog.ui.ac.AutoComplete.prototype.getTarget = function() {
'use strict';
return this.target_;
};
/**
* Sets the current target HTML node for displaying autocomplete UI.
* Can be an implementation specific definition of how to display UI in relation
* to the target node.
* This target will be passed into <code>renderer.renderRows()</code>
*
* @param {Element} target The current target HTML node for displaying
* autocomplete UI.
*/
goog.ui.ac.AutoComplete.prototype.setTarget = function(target) {
'use strict';
this.target_ = target;
};
/**
* @return {boolean} Whether the autocomplete's renderer is open.
* @suppress {missingProperties}
*/
goog.ui.ac.AutoComplete.prototype.isOpen = function() {
'use strict';
return this.renderer_.isVisible();
};
/**
* @return {number} Number of rows in the autocomplete.
* @deprecated Use this.getSuggestionCount().
*/
goog.ui.ac.AutoComplete.prototype.getRowCount = function() {
'use strict';
return this.getSuggestionCount();
};
/**
* Moves the hilite to the next non-disabled row.
* Calls renderer.hiliteId() when there's something to do.
* @return {boolean} Returns true on a successful hilite.
*/
goog.ui.ac.AutoComplete.prototype.hiliteNext = function() {
'use strict';
var lastId = this.firstRowId_ + this.rows_.length - 1;
var toHilite = this.hiliteId_;
// Hilite the next row, skipping any disabled rows.
for (var i = 0; i < this.rows_.length; i++) {
// Increment to the next row.
if (toHilite >= this.firstRowId_ && toHilite < lastId) {
toHilite++;
} else if (toHilite == -1) {
toHilite = this.firstRowId_;
} else if (this.allowFreeSelect_ && toHilite == lastId) {
this.hiliteId(-1);
return false;
} else if (this.wrap_ && toHilite == lastId) {
toHilite = this.firstRowId_;
} else {
return false;
}
if (this.hiliteId(toHilite)) {
return true;
}
}
return false;
};
/**
* Moves the hilite to the previous non-disabled row. Calls
* renderer.hiliteId() when there's something to do.
* @return {boolean} Returns true on a successful hilite.
*/
goog.ui.ac.AutoComplete.prototype.hilitePrev = function() {
'use strict';
var lastId = this.firstRowId_ + this.rows_.length - 1;
var toHilite = this.hiliteId_;
// Hilite the previous row, skipping any disabled rows.
for (var i = 0; i < this.rows_.length; i++) {
// Decrement to the previous row.
if (toHilite > this.firstRowId_) {
toHilite--;
} else if (this.allowFreeSelect_ && toHilite == this.firstRowId_) {
this.hiliteId(-1);
return false;
} else if (this.wrap_ && (toHilite == -1 || toHilite == this.firstRowId_)) {
toHilite = lastId;
} else {
return false;
}
if (this.hiliteId(toHilite)) {
return true;
}
}
return false;
};
/**
* Hilites the id if it's valid and the row is not disabled, otherwise does
* nothing.
* @param {number} id A row id (not index).
* @return {boolean} Whether the id was hilited. Returns false if the row is
* disabled.
*/
goog.ui.ac.AutoComplete.prototype.hiliteId = function(id) {
'use strict';
var index = this.getIndexOfId(id);
var row = this.rows_[index];
var rowDisabled =
!!row && this.matcher_.isRowDisabled && this.matcher_.isRowDisabled(row);
if (!rowDisabled) {
this.hiliteId_ = id;
this.renderer_.hiliteId(id);
return index != -1;
}
return false;
};
/**
* Hilites the index, if it's valid and the row is not disabled, otherwise does
* nothing.
* @param {number} index The row's index.
* @return {boolean} Whether the index was hilited.
*/
goog.ui.ac.AutoComplete.prototype.hiliteIndex = function(index) {
'use strict';
return this.hiliteId(this.getIdOfIndex_(index));
};
/**
* If there are any current matches, this passes the hilited row data to
* <code>selectionHandler.selectRow()</code>
* @return {boolean} Whether there are any current matches.
*/
goog.ui.ac.AutoComplete.prototype.selectHilited = function() {
'use strict';
var index = this.getIndexOfId(this.hiliteId_);
if (index != -1) {
var selectedRow = this.rows_[index];
var suppressUpdate =
/** @type {!goog.ui.ac.InputHandler} */ (this.selectionHandler_)
.selectRow(selectedRow);
if (this.triggerSuggestionsOnUpdate_) {
this.token_ = null;
this.dismissOnDelay();
} else {
this.dismiss();
}
if (!suppressUpdate) {
this.dispatchEvent({
type: goog.ui.ac.AutoComplete.EventType.UPDATE,
row: selectedRow,
index: index
});
if (this.triggerSuggestionsOnUpdate_) {
this.selectionHandler_.update(true);
}
}
return true;
} else {
this.dismiss();
this.dispatchEvent({
type: goog.ui.ac.AutoComplete.EventType.UPDATE,
row: null,
index: null
});
return false;
}
};
/**
* Returns whether or not the autocomplete is open and has a highlighted row.
* @return {boolean} Whether an autocomplete row is highlighted.
*/
goog.ui.ac.AutoComplete.prototype.hasHighlight = function() {
'use strict';
return this.isOpen() && this.getIndexOfId(this.hiliteId_) != -1;
};
/**
* Clears out the token, rows, and hilite, and calls
* <code>renderer.dismiss()</code>
*/
goog.ui.ac.AutoComplete.prototype.dismiss = function() {
'use strict';
this.hiliteId_ = -1;
this.token_ = null;
this.firstRowId_ += this.rows_.length;
this.rows_ = [];
window.clearTimeout(this.dismissTimer_);
this.dismissTimer_ = null;
this.renderer_.dismiss();
this.dispatchEvent(goog.ui.ac.AutoComplete.EventType.SUGGESTIONS_UPDATE);
this.dispatchEvent(goog.ui.ac.AutoComplete.EventType.DISMISS);
};
/**
* Call a dismiss after a delay, if there's already a dismiss active, ignore.
*/
goog.ui.ac.AutoComplete.prototype.dismissOnDelay = function() {
'use strict';
if (!this.dismissTimer_) {
this.dismissTimer_ = window.setTimeout(goog.bind(this.dismiss, this), 100);
}
};
/**
* Cancels any delayed dismiss events immediately.
* @return {boolean} Whether a delayed dismiss was cancelled.
* @private
*/
goog.ui.ac.AutoComplete.prototype.immediatelyCancelDelayedDismiss_ =
function() {
'use strict';
if (this.dismissTimer_) {
window.clearTimeout(this.dismissTimer_);
this.dismissTimer_ = null;
return true;
}
return false;
};
/**
* Cancel the active delayed dismiss if there is one.
*/
goog.ui.ac.AutoComplete.prototype.cancelDelayedDismiss = function() {
'use strict';
// Under certain circumstances a cancel event occurs immediately prior to a
// delayedDismiss event that it should be cancelling. To handle this situation
// properly, a timer is used to stop that event.
// Using only the timer creates undesirable behavior when the cancel occurs
// less than 10ms before the delayed dismiss timout ends. If that happens the
// clearTimeout() will occur too late and have no effect.
if (!this.immediatelyCancelDelayedDismiss_()) {
window.setTimeout(
goog.bind(this.immediatelyCancelDelayedDismiss_, this), 10);
}
};
/** @override */
goog.ui.ac.AutoComplete.prototype.disposeInternal = function() {
'use strict';
goog.ui.ac.AutoComplete.superClass_.disposeInternal.call(this);
delete this.inputToAnchorMap_;
this.renderer_.dispose();
this.selectionHandler_.dispose();
this.matcher_ = null;
};
/**
* Callback passed to Matcher when requesting matches for a token.
* This might be called synchronously, or asynchronously, or both, for
* any implementation of a Matcher.
* If the Matcher calls this back, with the same token this AutoComplete
* has set currently, then this will package the matching rows in object
* of the form
* <pre>
* {
* id: an integer ID unique to this result set and AutoComplete instance,
* data: the raw row data from Matcher
* }
* </pre>
*
* @param {string} matchedToken Token that corresponds with the rows.
* @param {!Array<?>} rows Set of data that match the given token.
* @param {(boolean|goog.ui.ac.RenderOptions)=} opt_options If true,
* keeps the currently hilited (by index) element hilited. If false not.
* Otherwise a RenderOptions object.
* @private
*/
goog.ui.ac.AutoComplete.prototype.matchListener_ = function(
matchedToken, rows, opt_options) {
'use strict';
if (this.token_ != matchedToken) {
// Matcher's response token doesn't match current token.
// This is probably an async response that came in after
// the token was changed, so don't do anything.
return;
}
this.renderRows(rows, opt_options);
};
/**
* Renders the rows and adds highlighting.
* @param {!Array<?>} rows Set of data that match the given token.
* @param {(boolean|goog.ui.ac.RenderOptions)=} opt_options If true,
* keeps the currently hilited (by index) element hilited. If false not.
* Otherwise a RenderOptions object.
* @suppress {missingProperties}
*/
goog.ui.ac.AutoComplete.prototype.renderRows = function(rows, opt_options) {
'use strict';
// The optional argument should be a RenderOptions object. It can be a
// boolean for backwards compatibility, defaulting to false.
var optionsObj = goog.typeOf(opt_options) == 'object' && opt_options;
var preserveHilited =
optionsObj ? optionsObj.getPreserveHilited() : opt_options;
var indexToHilite = preserveHilited ? this.getIndexOfId(this.hiliteId_) : -1;
// Current token matches the matcher's response token.
this.firstRowId_ += this.rows_.length;
this.rows_ = rows;
var rendRows = [];
for (var i = 0; i < rows.length; ++i) {
rendRows.push({id: this.getIdOfIndex_(i), data: rows[i]});
}
var anchor = null;
if (this.target_) {
anchor = this.inputToAnchorMap_[goog.getUid(this.target_)] || this.target_;
}
this.renderer_.setAnchorElement(anchor);
this.renderer_.renderRows(rendRows, this.token_, this.target_);
var autoHilite = this.autoHilite_;
if (optionsObj && optionsObj.getAutoHilite() !== undefined) {
autoHilite = optionsObj.getAutoHilite();
}
this.hiliteId_ = -1;
if ((autoHilite || indexToHilite >= 0) && rendRows.length != 0 &&
this.token_) {
if (indexToHilite >= 0) {
this.hiliteId(this.getIdOfIndex_(indexToHilite));
} else {
// Hilite the first non-disabled row.
this.hiliteNext();
}
}
this.dispatchEvent(goog.ui.ac.AutoComplete.EventType.SUGGESTIONS_UPDATE);
};
/**
* Gets the index corresponding to a particular id.
* @param {number} id A unique id for the row.
* @return {number} A valid index into rows_, or -1 if the id is invalid.
* @protected
*/
goog.ui.ac.AutoComplete.prototype.getIndexOfId = function(id) {
'use strict';
var index = id - this.firstRowId_;
if (index < 0 || index >= this.rows_.length) {
return -1;
}
return index;
};
/**
* Gets the id corresponding to a particular index. (Does no checking.)
* @param {number} index The index of a row in the result set.
* @return {number} The id that currently corresponds to that index.
* @private
*/
goog.ui.ac.AutoComplete.prototype.getIdOfIndex_ = function(index) {
'use strict';
return this.firstRowId_ + index;
};
/**
* Attach text areas or input boxes to the autocomplete by DOM reference. After
* elements are attached to the autocomplete, when a user types they will see
* the autocomplete drop down.
* @param {...Element} var_args Variable args: Input or text area elements to
* attach the autocomplete too.
*/
goog.ui.ac.AutoComplete.prototype.attachInputs = function(var_args) {
'use strict';
// Delegate to the input handler
var inputHandler = /** @type {goog.ui.ac.InputHandler} */
(this.selectionHandler_);
inputHandler.attachInputs.apply(inputHandler, arguments);
};
/**
* Detach text areas or input boxes to the autocomplete by DOM reference.
* @param {...Element} var_args Variable args: Input or text area elements to
* detach from the autocomplete.
*/
goog.ui.ac.AutoComplete.prototype.detachInputs = function(var_args) {
'use strict';
// Delegate to the input handler
var inputHandler = /** @type {goog.ui.ac.InputHandler} */
(this.selectionHandler_);
inputHandler.detachInputs.apply(inputHandler, arguments);
// Remove mapping from input to anchor if one exists.
Array.prototype.forEach.call(arguments, function(input) {
'use strict';
goog.object.remove(this.inputToAnchorMap_, goog.getUid(input));
}, this);
};
/**
* Attaches the autocompleter to a text area or text input element
* with an anchor element. The anchor element is the element the
* autocomplete box will be positioned against.
* @param {Element} inputElement The input element. May be 'textarea',
* text 'input' element, or any other element that exposes similar
* interface.
* @param {Element} anchorElement The anchor element.
*/
goog.ui.ac.AutoComplete.prototype.attachInputWithAnchor = function(
inputElement, anchorElement) {
'use strict';
this.inputToAnchorMap_[goog.getUid(inputElement)] = anchorElement;
this.attachInputs(inputElement);
};
/**
* Forces an update of the display.
* @param {boolean=} opt_force Whether to force an update.
*/
goog.ui.ac.AutoComplete.prototype.update = function(opt_force) {
'use strict';
var inputHandler = /** @type {goog.ui.ac.InputHandler} */
(this.selectionHandler_);
inputHandler.update(opt_force);
};
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