diff options
Diffstat (limited to 'webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/manager/selection/SelectionManager.js')
| -rw-r--r-- | webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/manager/selection/SelectionManager.js | 1433 |
1 files changed, 0 insertions, 1433 deletions
diff --git a/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/manager/selection/SelectionManager.js b/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/manager/selection/SelectionManager.js deleted file mode 100644 index a37c2459b1..0000000000 --- a/webapps/qooxdoo-0.6.3-sdk/frontend/framework/source/class/qx/manager/selection/SelectionManager.js +++ /dev/null @@ -1,1433 +0,0 @@ -/* ************************************************************************ - - qooxdoo - the new era of web development - - http://qooxdoo.org - - Copyright: - 2004-2006 by 1&1 Internet AG, Germany, http://www.1and1.org - - License: - LGPL 2.1: http://www.gnu.org/licenses/lgpl.html - - Authors: - * Sebastian Werner (wpbasti) - * Andreas Ecker (ecker) - -************************************************************************ */ - -/* ************************************************************************ - -#module(ui_form) - -************************************************************************ */ - -/** - * This class represents a selection and manage incoming events for widgets - * which need selection support. - * - * @event changeSelection {qx.event.type.DataEvent} sets the data property of the event object to an arryas of selected items. - */ -qx.OO.defineClass("qx.manager.selection.SelectionManager", qx.core.Target, -function(vBoundedWidget) -{ - qx.core.Target.call(this); - - this._selectedItems = new qx.type.Selection(this); - - if (qx.util.Validation.isValid(vBoundedWidget)) { - this.setBoundedWidget(vBoundedWidget); - } -}); - - - -/* ---------------------------------------------------------------------------- - PROPERTIES ---------------------------------------------------------------------------- -*/ - -/*! -This contains the currently assigned widget (qx.ui.form.List, ...) -*/ -qx.OO.addProperty({ name : "boundedWidget", type : "object" }); - -/*! -Should multiple selection be allowed? -*/ -qx.OO.addProperty({ name : "multiSelection", type : "boolean", defaultValue : true }); - -/*! -Enable drag selection? -*/ -qx.OO.addProperty({ name : "dragSelection", type : "boolean", defaultValue : true }); - -/*! -Should the user be able to select -*/ -qx.OO.addProperty({ name : "canDeselect", type : "boolean", defaultValue : true }); - -/*! -Should a change event be fired? -*/ -qx.OO.addProperty({ name : "fireChange", type : "boolean", defaultValue : true }); - -/*! -The current anchor in range selections. -*/ -qx.OO.addProperty({ name : "anchorItem", type : "object" }); - -/*! -The last selected item -*/ -qx.OO.addProperty({ name : "leadItem", type : "object" }); - -/*! -Grid selection -*/ -qx.OO.addProperty({ name : "multiColumnSupport", type : "boolean", defaultValue : false }); - - - - - - -/* ---------------------------------------------------------------------------- - MODIFIER ---------------------------------------------------------------------------- -*/ - -qx.Proto._modifyAnchorItem = function(propValue, propOldValue, propData) -{ - if (propOldValue) { - this.renderItemAnchorState(propOldValue, false); - } - - if (propValue) { - this.renderItemAnchorState(propValue, true); - } - - return true; -} - -qx.Proto._modifyLeadItem = function(propValue, propOldValue, propData) -{ - if (propOldValue) { - this.renderItemLeadState(propOldValue, false); - } - - if (propValue) { - this.renderItemLeadState(propValue, true); - } - - return true; -} - - - - - - -/* ---------------------------------------------------------------------------- - MAPPING TO BOUNDED WIDGET ---------------------------------------------------------------------------- -*/ - -qx.Proto._getFirst = function() { - return this.getBoundedWidget().getFirstVisibleChild(); -} - -qx.Proto._getLast = function() { - return this.getBoundedWidget().getLastVisibleChild(); -} - -qx.Proto.getFirst = function() -{ - var vItem = this._getFirst(); - if (vItem) { - return vItem.isEnabled() ? vItem : this.getNext(vItem); - } -} - -qx.Proto.getLast = function() -{ - var vItem = this._getLast(); - if (vItem) { - return vItem.isEnabled() ? vItem : this.getPrevious(vItem); - } -} - -qx.Proto.getItems = function() { - return this.getBoundedWidget().getChildren(); -} - -qx.Proto.getNextSibling = function(vItem) { - return vItem.getNextSibling(); -} - -qx.Proto.getPreviousSibling = function(vItem) { - return vItem.getPreviousSibling(); -} - -qx.Proto.getNext = function(vItem) -{ - while(vItem) - { - vItem = this.getNextSibling(vItem); - - if (!vItem) { - break; - } - - if (this.getItemEnabled(vItem)) { - return vItem; - } - } - - return null; -} - -qx.Proto.getPrevious = function(vItem) -{ - while(vItem) - { - vItem = this.getPreviousSibling(vItem); - - if (!vItem) { - break; - } - - if (this.getItemEnabled(vItem)) { - return vItem; - } - } - - return null; -} - -qx.Proto.isBefore = function(vItem1, vItem2) -{ - var cs = this.getItems(); - return cs.indexOf(vItem1) < cs.indexOf(vItem2); -} - -qx.Proto.isEqual = function(vItem1, vItem2) { - return vItem1 == vItem2; -} - - - -/* ---------------------------------------------------------------------------- - MAPPING TO ITEM PROPERTIES ---------------------------------------------------------------------------- -*/ - -qx.Proto.getItemHashCode = function(vItem) { - return vItem.toHashCode(); -} - - - - - -/* ---------------------------------------------------------------------------- - MAPPING TO ITEM DIMENSIONS ---------------------------------------------------------------------------- -*/ - -qx.Proto.scrollItemIntoView = function(vItem, vTopLeft) { - vItem.scrollIntoView(vTopLeft); -} - -qx.Proto.getItemLeft = function(vItem) { - return vItem.getOffsetLeft(); -} - -qx.Proto.getItemTop = function(vItem) { - return vItem.getOffsetTop(); -} - -qx.Proto.getItemWidth = function(vItem) { - return vItem.getOffsetWidth(); -} - -qx.Proto.getItemHeight = function(vItem) { - return vItem.getOffsetHeight(); -} - -qx.Proto.getItemEnabled = function(vItem) { - return vItem.getEnabled(); -} - - - - - - -/* ---------------------------------------------------------------------------- - ITEM STATE MANAGMENT ---------------------------------------------------------------------------- -*/ - -qx.Proto.renderItemSelectionState = function(vItem, vIsSelected) -{ - vIsSelected ? vItem.addState("selected") : vItem.removeState("selected"); - - if (vItem.handleStateChange) { - vItem.handleStateChange(); - } -} - -qx.Proto.renderItemAnchorState = function(vItem, vIsAnchor) -{ - vIsAnchor ? vItem.addState("anchor") : vItem.removeState("anchor"); - - if (vItem.handleStateChange != null) { - vItem.handleStateChange(); - } -} - -qx.Proto.renderItemLeadState = function(vItem, vIsLead) -{ - vIsLead ? vItem.addState("lead") : vItem.removeState("lead"); - - if (vItem.handleStateChange != null) { - vItem.handleStateChange(); - } -} - - - - - -/* ---------------------------------------------------------------------------- - SELECTION HANDLING ---------------------------------------------------------------------------- -*/ - -qx.Proto.getItemSelected = function(vItem) { - return this._selectedItems.contains(vItem); -} - -/*! -Make a single item selected / not selected - -#param vItem[qx.ui.core.Widget]: Item which should be selected / not selected -#param vSelected[Boolean]: Should this item be selected? -*/ -qx.Proto.setItemSelected = function(vItem, vSelected) -{ - var hc = this.getItemHashCode(vItem); - - switch(this.getMultiSelection()) - { - // Multiple item selection is allowed - case true: - if (!this.getItemEnabled(vItem)) { - return; - } - - // If selection state is not to be changed => return - if (this.getItemSelected(vItem) == vSelected) { - return; - } - - // Otherwise render new state - this.renderItemSelectionState(vItem, vSelected); - - // Add item to selection hash / delete it from there - vSelected ? this._selectedItems.add(vItem) : this._selectedItems.remove(vItem); - - // Dispatch change Event - this._dispatchChange(); - - break; - - - - // Multiple item selection is NOT allowed - case false: - var item0 = this.getSelectedItems()[0]; - - - - if (vSelected) - { - // Precheck for any changes - var old = item0; - - if (this.isEqual(vItem, old)) { - return; - } - - // Reset rendering of previous selected item - if (old != null) { - this.renderItemSelectionState(old, false); - } - - // Render new item as selected - this.renderItemSelectionState(vItem, true); - - // Reset current selection hash - this._selectedItems.removeAll(); - - // Add new one - this._selectedItems.add(vItem); - - // Dispatch change Event - this._dispatchChange(); - } - else - { - // Pre-check if item is currently selected - // Do not allow deselection in single selection mode - if (!this.isEqual(item0, vItem)) - { - // Reset rendering as selected item - this.renderItemSelectionState(vItem, false); - - // Reset current selection hash - this._selectedItems.removeAll(); - - // Dispatch change Event - this._dispatchChange(); - } - } - - break; - - } -} - - - - - - - - -/*! - Get the selected items (objects) -*/ -qx.Proto.getSelectedItems = function() { - return this._selectedItems.toArray(); -} - -qx.Proto.getSelectedItem = function() { - return this._selectedItems.getFirst(); -} - -/*! -Select given items - -#param vItems[Array of Widgets]: Items to select -*/ -qx.Proto.setSelectedItems = function(vItems) -{ - var oldVal = this._getChangeValue(); - - // Temporary disabling of event fire - var oldFireChange = this.getFireChange(); - this.setFireChange(false); - - // Deselect all currently selected items - this._deselectAll(); - - // Apply new selection - var vItem; - var vItemLength = vItems.length; - - for (var i=0; i<vItemLength; i++) - { - vItem = vItems[i]; - - if (!this.getItemEnabled(vItem)) { - continue; - } - - // Add item to selection - this._selectedItems.add(vItem); - - // Render new state for item - this.renderItemSelectionState(vItem, true); - } - - // Recover change event status - this.setFireChange(oldFireChange); - - // Dispatch change Event - if (oldFireChange && this._hasChanged(oldVal)) { - this._dispatchChange(); - } -} - - -qx.Proto.setSelectedItem = function(vItem) -{ - if (!vItem) { - return; - } - - if (!this.getItemEnabled(vItem)) { - return; - } - - var oldVal = this._getChangeValue(); - - // Temporary disabling of event fire - var oldFireChange = this.getFireChange(); - this.setFireChange(false); - - // Deselect all currently selected items - this._deselectAll(); - - // Add item to selection - this._selectedItems.add(vItem); - - // Render new state for item - this.renderItemSelectionState(vItem, true); - - // Recover change event status - this.setFireChange(oldFireChange); - - // Dispatch change Event - if (oldFireChange && this._hasChanged(oldVal)) { - this._dispatchChange(); - } -} - - - - - -/*! - Select all items. -*/ -qx.Proto.selectAll = function() -{ - var oldVal = this._getChangeValue(); - - // Temporary disabling of event fire - var oldFireChange = this.getFireChange(); - this.setFireChange(false); - - // Call sub method to select all items - this._selectAll(); - - // Recover change event status - this.setFireChange(oldFireChange); - - // Dispatch change Event - if (oldFireChange && this._hasChanged(oldVal)) { - this._dispatchChange(); - } -} - -/*! - Sub method for selectAll. Handles the real work - to select all items. -*/ -qx.Proto._selectAll = function() -{ - if (!this.getMultiSelection()) { - return; - } - - var vItem; - var vItems = this.getItems(); - var vItemsLength = vItems.length; - - // Reset current selection hash - this._selectedItems.removeAll(); - - for (var i=0; i<vItemsLength; i++) - { - vItem = vItems[i]; - - if (!this.getItemEnabled(vItem)) { - continue; - } - - // Add item to selection - this._selectedItems.add(vItem); - - // Render new state for item - this.renderItemSelectionState(vItem, true); - } - - return true; -} - - - - - -/*! - Deselect all items. -*/ -qx.Proto.deselectAll = function() -{ - var oldVal = this._getChangeValue(); - - // Temporary disabling of event fire - var oldFireChange = this.getFireChange(); - this.setFireChange(false); - - // Call sub method to deselect all items - this._deselectAll(); - - // Recover change event status - this.setFireChange(oldFireChange); - - // Dispatch change Event - if (oldFireChange && this._hasChanged(oldVal)) - this._dispatchChange(); - } - -/*! - Sub method for deselectAll. Handles the real work - to deselect all items. -*/ -qx.Proto._deselectAll = function() -{ - // Render new state for items - var items = this._selectedItems.toArray(); - for (var i = 0; i < items.length; i++) { - this.renderItemSelectionState(items[i], false); - } - - // Delete all entries in selectedItems hash - this._selectedItems.removeAll(); - - return true; -} - - - - -/*! -Select a range of items. - -#param vItem1[qx.ui.core.Widget]: Start item -#param vItem2[qx.ui.core.Widget]: Stop item -*/ -qx.Proto.selectItemRange = function(vItem1, vItem2) -{ - var oldVal = this._getChangeValue(); - - // Temporary disabling of event fire - var oldFireChange = this.getFireChange(); - this.setFireChange(false); - - // Call sub method to select the range of items - this._selectItemRange(vItem1, vItem2, true); - - // Recover change event status - this.setFireChange(oldFireChange); - - // Dispatch change Event - if (oldFireChange && this._hasChanged(oldVal)) { - this._dispatchChange(); - } -} - - - - -/*! -Sub method for selectItemRange. Handles the real work -to select a range of items. - -#param vItem1[qx.ui.core.Widget]: Start item -#param vItem2[qx.ui.core.Widget]: Stop item -#param vDelect[Boolean]: Deselect currently selected items first? -*/ -qx.Proto._selectItemRange = function(vItem1, vItem2, vDeselect) -{ - // this.debug("SELECT_RANGE: " + vItem1.toText() + "<->" + vItem2.toText()); - // this.debug("SELECT_RANGE: " + vItem1.pos + "<->" + vItem2.pos); - - // Pre-Check a revert call if vItem2 is before vItem1 - if (this.isBefore(vItem2, vItem1)) { - return this._selectItemRange(vItem2, vItem1, vDeselect); - } - - // Deselect all - if (vDeselect) { - this._deselectAll(); - } - - var vCurrentItem = vItem1; - - while (vCurrentItem != null) - { - if (this.getItemEnabled(vCurrentItem)) - { - // Add item to selection - this._selectedItems.add(vCurrentItem); - - // Render new state for item - this.renderItemSelectionState(vCurrentItem, true); - } - - // Stop here if we reached target item - if (this.isEqual(vCurrentItem, vItem2)) { - break; - } - - // Get next item - vCurrentItem = this.getNext(vCurrentItem); - } - - return true; -} - -/*! -Internal method for deselection of ranges. - -#param vItem1[qx.ui.core.Widget]: Start item -#param vItem2[qx.ui.core.Widget]: Stop item -*/ -qx.Proto._deselectItemRange = function(vItem1, vItem2) -{ - // Pre-Check a revert call if vItem2 is before vItem1 - if (this.isBefore(vItem2, vItem1)) { - return this._deselectItemRange(vItem2, vItem1); - } - - var vCurrentItem = vItem1; - - while (vCurrentItem != null) - { - // Add item to selection - this._selectedItems.remove(vCurrentItem); - - // Render new state for item - this.renderItemSelectionState(vCurrentItem, false); - - // Stop here if we reached target item - if (this.isEqual(vCurrentItem, vItem2)) { - break; - } - - // Get next item - vCurrentItem = this.getNext(vCurrentItem); - } -} - - -/* ---------------------------------------------------------------------------- - MOUSE EVENT HANDLING ---------------------------------------------------------------------------- -*/ - -qx.Proto._activeDragSession = false; - -qx.Proto.handleMouseDown = function(vItem, e) -{ - // Only allow left and right button - if (!e.isLeftButtonPressed() && !e.isRightButtonPressed()) { - return; - } - - // Keep selection on right click on already selected item - if (e.isRightButtonPressed() && this.getItemSelected(vItem)) { - return; - } - - // Shift Key - // or - // Click on an unseleted item (without Strg) - if (e.getShiftKey() || this.getDragSelection() || (!this.getItemSelected(vItem) && !e.getCtrlKey())) - { - // Handle event - this._onmouseevent(vItem, e); - } - else - { - // Update lead item - this.setLeadItem(vItem); - } - - - // Handle dragging - this._activeDragSession = this.getDragSelection(); - - if (this._activeDragSession) - { - // Add mouseup listener and register as capture widget - this.getBoundedWidget().addEventListener("mouseup", this._ondragup, this); - this.getBoundedWidget().setCapture(true); - } -} - -qx.Proto._ondragup = function(e) -{ - this.getBoundedWidget().removeEventListener("mouseup", this._ondragup, this); - this.getBoundedWidget().setCapture(false); - this._activeDragSession = false; -} - -qx.Proto.handleMouseUp = function(vItem, e) -{ - if (!e.isLeftButtonPressed()) { - return; - } - - if (e.getCtrlKey() || this.getItemSelected(vItem) && !this._activeDragSession) { - this._onmouseevent(vItem, e); - } - - if (this._activeDragSession) - { - this._activeDragSession = false; - this.getBoundedWidget().setCapture(false); - } -} - -qx.Proto.handleMouseOver = function(oItem, e) -{ - if (! this.getDragSelection() || !this._activeDragSession) { - return; - } - - this._onmouseevent(oItem, e, true); -} - -// currently unused placeholder -qx.Proto.handleClick = function(vItem, e) {} - -// currently unused placeholder -qx.Proto.handleDblClick = function(vItem, e) {} - - -/*! -Internal handler for all mouse events bound to this manager. -*/ -qx.Proto._onmouseevent = function(oItem, e, bOver) -{ - if (!this.getItemEnabled(oItem)) { - return; - } - - // ******************************************************************** - // Init - // ******************************************************************** - - // Cache current (old) values - var oldVal = this._getChangeValue(); - var oldLead = this.getLeadItem(); - - // Temporary disabling of event fire - var oldFireChange = this.getFireChange(); - this.setFireChange(false); - - // Cache selection and count - var selectedItems = this.getSelectedItems(); - var selectedCount = selectedItems.length; - - // Update lead item - this.setLeadItem(oItem); - - // Cache current anchor item - var currentAnchorItem = this.getAnchorItem(); - - // Cache keys pressed - var vCtrlKey = e.getCtrlKey(); - var vShiftKey = e.getShiftKey(); - - - // ******************************************************************** - // Do we need to update the anchor? - // ******************************************************************** - - if (!currentAnchorItem || selectedCount == 0 || (vCtrlKey && !vShiftKey && this.getMultiSelection() && !this.getDragSelection())) - { - this.setAnchorItem(oItem); - currentAnchorItem = oItem; - } - - - - // ******************************************************************** - // Mode #1: Replace current selection with new one - // ******************************************************************** - if ((!vCtrlKey && !vShiftKey && !this._activeDragSession || !this.getMultiSelection())) - { - if (!this.getItemEnabled(oItem)) { - return; - } - - // Remove current selection - this._deselectAll(); - - // Update anchor item - this.setAnchorItem(oItem); - - if (this._activeDragSession) - { - // a little bit hacky, but seems to be a fast way to detect if we slide to top or to bottom - this.scrollItemIntoView((this.getBoundedWidget().getScrollTop() > (this.getItemTop(oItem)-1) ? this.getPrevious(oItem) : this.getNext(oItem)) || oItem); - } - - if (!this.getItemSelected(oItem)) { - this.renderItemSelectionState(oItem, true); - } - - // Clear up and add new one - //this._selectedItems.removeAll(); - this._selectedItems.add(oItem); - - this._addToCurrentSelection = true; - } - - - // ******************************************************************** - // Mode #2: (De-)Select item range in mouse drag session - // ******************************************************************** - else if (this._activeDragSession && bOver) - { - if (oldLead) { - this._deselectItemRange(currentAnchorItem, oldLead); - } - - // Drag down - if (this.isBefore(currentAnchorItem, oItem)) - { - if (this._addToCurrentSelection) - { - this._selectItemRange(currentAnchorItem, oItem, false); - } - else - { - this._deselectItemRange(currentAnchorItem, oItem); - } - } - - // Drag up - else - { - if (this._addToCurrentSelection) - { - this._selectItemRange(oItem, currentAnchorItem, false); - } - else - { - this._deselectItemRange(oItem, currentAnchorItem); - } - } - - // a little bit hacky, but seems to be a fast way to detect if we slide to top or to bottom - this.scrollItemIntoView((this.getBoundedWidget().getScrollTop() > (this.getItemTop(oItem)-1) ? this.getPrevious(oItem) : this.getNext(oItem)) || oItem); - } - - - // ******************************************************************** - // Mode #3: Add new item to current selection (ctrl pressed) - // ******************************************************************** - else if (this.getMultiSelection() && vCtrlKey && !vShiftKey) - { - if (!this._activeDragSession) { - this._addToCurrentSelection = !(this.getCanDeselect() && this.getItemSelected(oItem)); - } - - this.setItemSelected(oItem, this._addToCurrentSelection); - this.setAnchorItem(oItem); - } - - - // ******************************************************************** - // Mode #4: Add new (or continued) range to selection - // ******************************************************************** - else if (this.getMultiSelection() && vCtrlKey && vShiftKey) - { - if (!this._activeDragSession) { - this._addToCurrentSelection = !(this.getCanDeselect() && this.getItemSelected(oItem)); - } - - if (this._addToCurrentSelection) - { - this._selectItemRange(currentAnchorItem, oItem, false); - } - else - { - this._deselectItemRange(currentAnchorItem, oItem); - } - } - - // ******************************************************************** - // Mode #5: Replace selection with new range selection - // ******************************************************************** - else if (this.getMultiSelection() && !vCtrlKey && vShiftKey) - { - if (this.getCanDeselect()) - { - this._selectItemRange(currentAnchorItem, oItem, true); - } - - else - { - if (oldLead) { - this._deselectItemRange(currentAnchorItem, oldLead); - } - - this._selectItemRange(currentAnchorItem, oItem, false); - } - } - - - - // Recover change event status - this.setFireChange(oldFireChange); - - // Dispatch change Event - if(oldFireChange && this._hasChanged(oldVal)) { - this._dispatchChange(); - } -} - - - - -/* ---------------------------------------------------------------------------- - KEY EVENT HANDLER ---------------------------------------------------------------------------- -*/ - -qx.Proto.handleKeyDown = function(vDomEvent) { - this.warn( - "qx.manager.selection.SelectionManager.handleKeyDown is deprecated! " + - "Use keypress insted and bind it to the onkeypress event." - ); - this.handleKeyPress(vDomEvent); -} - - -/** - * Handles key event to perform selection and navigation - * - * @param vDomEvent (Element) DOM event object - */ -qx.Proto.handleKeyPress = function(vDomEvent) -{ - var oldVal = this._getChangeValue(); - - // Temporary disabling of event fire - var oldFireChange = this.getFireChange(); - this.setFireChange(false); - - // Ctrl+A: Select all - if (vDomEvent.getKeyIdentifier() == "A" && vDomEvent.getCtrlKey()) - { - if (this.getMultiSelection()) - { - this._selectAll(); - - // Update lead item to this new last - // (or better here: first) selected item - this.setLeadItem(this.getFirst()); - } - } - - // Default operation - else - { - var aIndex = this.getAnchorItem(); - var itemToSelect = this.getItemToSelect(vDomEvent); - - // this.debug("Anchor: " + (aIndex ? aIndex.getLabel() : "null")); - // this.debug("ToSelect: " + (itemToSelect ? itemToSelect.getLabel() : "null")); - - if (itemToSelect && this.getItemEnabled(itemToSelect)) - { - // Update lead item to this new last selected item - this.setLeadItem(itemToSelect); - - // Scroll new item into view - this.scrollItemIntoView(itemToSelect); - - // Stop event handling - vDomEvent.preventDefault(); - - // Select a range - if (vDomEvent.getShiftKey() && this.getMultiSelection()) - { - // Make it a little bit more failsafe: - // Set anchor if not given already. Allows us to select - // a range without any previous selection. - if (aIndex == null) { - this.setAnchorItem(itemToSelect); - } - - // Select new range (and clear up current selection first) - this._selectItemRange(this.getAnchorItem(), itemToSelect, true); - } - else if (!vDomEvent.getCtrlKey()) - { - // Clear current selection - this._deselectAll(); - - // Update new item to be selected - this.renderItemSelectionState(itemToSelect, true); - - // Add item to new selection - this._selectedItems.add(itemToSelect); - - // Update anchor to this new item - // (allows following shift range selection) - this.setAnchorItem(itemToSelect); - } - else if (vDomEvent.getKeyIdentifier() == "Space") - { - if (this._selectedItems.contains(itemToSelect)) - { - // Update new item to be selected - this.renderItemSelectionState(itemToSelect, false); - - // Add item to new selection - this._selectedItems.remove(itemToSelect); - - // Fix anchor item - this.setAnchorItem(this._selectedItems.getFirst()); - } - else - { - // Clear current selection - if (!vDomEvent.getCtrlKey() || !this.getMultiSelection()) { - this._deselectAll(); - } - - // Update new item to be selected - this.renderItemSelectionState(itemToSelect, true); - - // Add item to new selection - this._selectedItems.add(itemToSelect); - - // Update anchor to this new item - // (allows following shift range selection) - this.setAnchorItem(itemToSelect); - } - } - } - } - - // Recover change event status - this.setFireChange(oldFireChange); - - // Dispatch change Event - if (oldFireChange && this._hasChanged(oldVal)) { - this._dispatchChange(); - } -} - -qx.Proto.getItemToSelect = function(vKeyboardEvent) -{ - // Don't handle ALT here - if (vKeyboardEvent.getAltKey()) { - return null; - } - - // Handle event by keycode - switch (vKeyboardEvent.getKeyIdentifier()) - { - case "Home": - return this.getHome(this.getLeadItem()); - - case "End": - return this.getEnd(this.getLeadItem()); - - - case "Down": - return this.getDown(this.getLeadItem()); - - case "Up": - return this.getUp(this.getLeadItem()); - - - case "Left": - return this.getLeft(this.getLeadItem()); - - case "Right": - return this.getRight(this.getLeadItem()); - - - case "PageUp": - return this.getPageUp(this.getLeadItem()) || this.getHome(this.getLeadItem()); - - case "PageDown": - return this.getPageDown(this.getLeadItem()) || this.getEnd(this.getLeadItem()); - - - case "Space": - if (vKeyboardEvent.getCtrlKey()) { - return this.getLeadItem(); - } - } - - return null; -} - - - - -/* ---------------------------------------------------------------------------- - CHANGE HANDLING ---------------------------------------------------------------------------- -*/ - -qx.Proto._dispatchChange = function() -{ - if (!this.getFireChange()) { - return; - } - - if (this.hasEventListeners("changeSelection")) { - this.dispatchEvent(new qx.event.type.DataEvent("changeSelection", this.getSelectedItems()), true); - } -} - -qx.Proto._hasChanged = function(sOldValue) { - return sOldValue != this._getChangeValue(); -} - -qx.Proto._getChangeValue = function() { - return this._selectedItems.getChangeValue(); -} - - - - - - -/* ---------------------------------------------------------------------------- - POSITION HANDLING ---------------------------------------------------------------------------- -*/ - -qx.Proto.getHome = function() { - return this.getFirst(); -} - -qx.Proto.getEnd = function() { - return this.getLast(); -} - -qx.Proto.getDown = function(vItem) -{ - if (!vItem) { - return this.getFirst(); - } - - return this.getMultiColumnSupport() ? (this.getUnder(vItem) || this.getLast()) : this.getNext(vItem); -} - -qx.Proto.getUp = function(vItem) -{ - if (!vItem) { - return this.getLast(); - } - - return this.getMultiColumnSupport() ? (this.getAbove(vItem) || this.getFirst()) : this.getPrevious(vItem); -} - -qx.Proto.getLeft = function(vItem) -{ - if (!this.getMultiColumnSupport()) { - return null; - } - - return !vItem ? this.getLast() : this.getPrevious(vItem); -} - -qx.Proto.getRight = function(vItem) -{ - if (!this.getMultiColumnSupport()) { - return null; - } - - return !vItem ? this.getFirst() : this.getNext(vItem); -} - -qx.Proto.getAbove = function(vItem) -{ - throw new Error("getAbove(): Not implemented yet"); -} - -qx.Proto.getUnder = function(vItem) -{ - throw new Error("getUnder(): Not implemented yet"); -} - - - - - - - -/* ---------------------------------------------------------------------------- - PAGE HANDLING ---------------------------------------------------------------------------- -*/ - -/*! -Jump a "page" up. - -#param vItem[qx.ui.core.Widget]: Relative to this widget -*/ -qx.Proto.getPageUp = function(vItem) -{ - var vBoundedWidget = this.getBoundedWidget(); - var vParentScrollTop = vBoundedWidget.getScrollTop(); - var vParentClientHeight = vBoundedWidget.getClientHeight(); - - // Find next item - var newItem; - var nextItem = this.getLeadItem(); - if (!nextItem) { - nextItem = this.getFirst(); - } - - // Normally we should reach the status "lead" for the - // nextItem after two iterations. - var tryLoops = 0; - while (tryLoops < 2) - { - while (nextItem && (this.getItemTop(nextItem) - this.getItemHeight(nextItem) >= vParentScrollTop)) { - nextItem = this.getUp(nextItem); - } - - // This should never occour after the fix above - if (nextItem == null) { - break; - } - - // If the nextItem is not anymore the leadItem - // Means: There has occured a change. - // We break here. This is normally the second step. - if (nextItem != this.getLeadItem()) - { - // be sure that the top is reached - this.scrollItemIntoView(nextItem, true); - break; - } - - // Update scrolling (this is normally the first step) - // this.debug("Scroll-Up: " + (vParentScrollTop + vParentClientHeight - 2 * this.getItemHeight(nextItem))); - vBoundedWidget.setScrollTop(vParentScrollTop - vParentClientHeight - this.getItemHeight(nextItem)); - - // Use the real applied value instead of the calulated above - vParentScrollTop = vBoundedWidget.getScrollTop(); - - // Increment counter - tryLoops++; - } - - return nextItem; -} - -/*! -Jump a "page" down. - -#param vItem[qx.ui.core.Widget]: Relative to this widget -*/ -qx.Proto.getPageDown = function(vItem) -{ - var vBoundedWidget = this.getBoundedWidget(); - var vParentScrollTop = vBoundedWidget.getScrollTop(); - var vParentClientHeight = vBoundedWidget.getClientHeight(); - - // this.debug("Bound: " + (vBoundedWidget._getTargetNode() != vBoundedWidget.getElement())); - - // this.debug("ClientHeight-1: " + vBoundedWidget._getTargetNode().clientHeight); - // this.debug("ClientHeight-2: " + vBoundedWidget.getElement().clientHeight); - - // Find next item - var newItem; - var nextItem = this.getLeadItem(); - if (!nextItem) { - nextItem = this.getFirst(); - } - - // Normally we should reach the status "lead" for the - // nextItem after two iterations. - var tryLoops = 0; - while (tryLoops < 2) - { - // this.debug("Loop: " + tryLoops); - // this.debug("Info: " + nextItem + " :: " + (this.getItemTop(nextItem) + (2 * this.getItemHeight(nextItem))) + " <> " + (vParentScrollTop + vParentClientHeight)); - // this.debug("Detail: " + vParentScrollTop + ", " + vParentClientHeight); - - // Find next - while (nextItem && ((this.getItemTop(nextItem) + (2 * this.getItemHeight(nextItem))) <= (vParentScrollTop + vParentClientHeight))) { - nextItem = this.getDown(nextItem); - } - - // This should never occour after the fix above - if (nextItem == null) { - break; - } - - // If the nextItem is not anymore the leadItem - // Means: There has occured a change. - // We break here. This is normally the second step. - if (nextItem != this.getLeadItem()) { - break; - } - - // Update scrolling (this is normally the first step) - // this.debug("Scroll-Down: " + (vParentScrollTop + vParentClientHeight - 2 * this.getItemHeight(nextItem))); - vBoundedWidget.setScrollTop(vParentScrollTop + vParentClientHeight - 2 * this.getItemHeight(nextItem)); - - // Use the real applied value instead of the calulated above - vParentScrollTop = vBoundedWidget.getScrollTop(); - - // Increment counter - tryLoops++; - } - - //this.debug("Select: " + nextItem._labelObject.getHtml()); - - return nextItem; -} - - - - - - - - - - -/* ---------------------------------------------------------------------------- - DISPOSE ---------------------------------------------------------------------------- -*/ - -qx.Proto.dispose = function() -{ - if (this.getDisposed()) { - return; - } - - if (this._selectedItems) - { - this._selectedItems.dispose(); - this._selectedItems = null; - } - - return qx.core.Target.prototype.dispose.call(this); -} |