319 lines
13 KiB
Mathematica
319 lines
13 KiB
Mathematica
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//The MIT License (MIT)
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//
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//Copyright (c) 2014 Rafał Augustyniak
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//
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//Permission is hereby granted, free of charge, to any person obtaining a copy of
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//this software and associated documentation files (the "Software"), to deal in
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//the Software without restriction, including without limitation the rights to
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//use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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//the Software, and to permit persons to whom the Software is furnished to do so,
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//subject to the following conditions:
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//
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//THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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//IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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//FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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//COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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//IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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//CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#import <QuartzCore/QuartzCore.h>
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#import "RATreeView+TableViewDelegate.h"
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#import "RATreeView_ClassExtension.h"
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#import "RATreeView+Private.h"
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#import "RATreeView.h"
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#import "RATreeNodeCollectionController.h"
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#import "RATreeNode.h"
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@implementation RATreeView (TableViewDelegate)
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#pragma mark - Configuring Rows for the Table View
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- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:heightForRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self heightForRowForItem:treeNode.item];
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}
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return self.tableView.rowHeight;
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}
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- (CGFloat)tableView:(UITableView *)tableView estimatedHeightForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:estimatedHeightForRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self estimatedHeightForRowForItem:treeNode.item];
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}
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return UITableViewAutomaticDimension;
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}
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- (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:indentationLevelForRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self indentationLevelForRowForItem:treeNode.item];
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}
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return 0;
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}
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- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:willDisplayCell:forItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self willDisplayCell:cell forItem:treeNode.item];
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}
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}
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#pragma mark - Managing Accessory Views
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- (void)tableView:(UITableView *)tableView accessoryButtonTappedForRowWithIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:accessoryButtonTappedForRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self accessoryButtonTappedForRowForItem:treeNode.item];
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}
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}
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#pragma mark - Managing Selection
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- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:willSelectRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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id item = [self.delegate treeView:self willSelectRowForItem:treeNode.item];
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if (item) {
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NSIndexPath *newIndexPath = [self indexPathForItem:item];
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return (newIndexPath.row == NSNotFound) ? indexPath : newIndexPath;
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} else {
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return nil;
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}
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}
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return indexPath;
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}
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- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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if ([self.delegate respondsToSelector:@selector(treeView:didSelectRowForItem:)]) {
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[self.delegate treeView:self didSelectRowForItem:treeNode.item];
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}
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if (treeNode.expanded) {
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if ([self.delegate respondsToSelector:@selector(treeView:shouldCollapaseRowForItem:)]) {
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if ([self.delegate treeView:self shouldCollapaseRowForItem:treeNode.item]) {
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[self collapseCellForTreeNode:treeNode informDelegate:YES];
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}
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} else {
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[self collapseCellForTreeNode:treeNode informDelegate:YES];
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}
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} else {
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if ([self.delegate respondsToSelector:@selector(treeView:shouldExpandRowForItem:)]) {
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if ([self.delegate treeView:self shouldExpandRowForItem:treeNode.item]) {
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[self expandCellForTreeNode:treeNode informDelegate:YES];
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}
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} else {
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[self expandCellForTreeNode:treeNode informDelegate:YES];
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}
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}
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}
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- (NSIndexPath *)tableView:(UITableView *)tableView willDeselectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:willDeselectRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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id item = [self.delegate treeView:self willDeselectRowForItem:treeNode.item];
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NSIndexPath *delegateIndexPath = [self indexPathForItem:item];
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return delegateIndexPath.row == NSNotFound ? indexPath : delegateIndexPath;
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} else {
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return indexPath;
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}
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}
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- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:didDeselectRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self didDeselectRowForItem:treeNode.item];
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}
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}
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- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:editingStyleForRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self editingStyleForRowForItem:treeNode.item];
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}
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return UITableViewCellEditingStyleDelete;
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}
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- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:titleForDeleteConfirmationButtonForRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self titleForDeleteConfirmationButtonForRowForItem:treeNode.item];
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}
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return @"Delete";
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}
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- (BOOL)tableView:(UITableView *)tableView shouldIndentWhileEditingRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:shouldIndentWhileEditingRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self shouldIndentWhileEditingRowForItem:treeNode.item];
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}
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return YES;
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}
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#pragma mark - Editing Table Rows
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- (void)tableView:(UITableView *)tableView willBeginEditingRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:willBeginEditingRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self willBeginEditingRowForItem:treeNode.item];
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}
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}
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- (void)tableView:(UITableView *)tableView didEndEditingRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:didEndEditingRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self didEndEditingRowForItem:treeNode.item];
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}
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}
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- (NSArray *)tableView:(UITableView *)tableView editActionsForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:editActionsForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self editActionsForItem:treeNode.item];
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}
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return nil;
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}
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#pragma mark - Tracking the Removal of Views
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- (void)tableView:(UITableView *)tableView didEndDisplayingCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:didEndDisplayingCell:forItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self didEndDisplayingCell:cell forItem:treeNode.item];
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}
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}
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#pragma mark - Copying and Pasting Row Content
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- (BOOL)tableView:(UITableView *)tableView shouldShowMenuForRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:shouldShowMenuForRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self shouldShowMenuForRowForItem:treeNode.item];
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}
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return NO;
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}
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- (BOOL)tableView:(UITableView *)tableView canPerformAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender
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{
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if ([self.delegate respondsToSelector:@selector(treeView:canPerformAction:forRowForItem:withSender:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self canPerformAction:action forRowForItem:treeNode.item withSender:sender];
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}
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return NO;
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}
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- (void)tableView:(UITableView *)tableView performAction:(SEL)action forRowAtIndexPath:(NSIndexPath *)indexPath withSender:(id)sender
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{
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if ([self.delegate respondsToSelector:@selector(treeView:performAction:forRowForItem:withSender:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self performAction:action forRowForItem:treeNode.item withSender:sender];
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}
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}
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#pragma mark - Managing Table View Highlighting
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- (BOOL)tableView:(UITableView *)tableView shouldHighlightRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:shouldHighlightRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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return [self.delegate treeView:self shouldHighlightRowForItem:treeNode.item];
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}
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return YES;
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}
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- (void)tableView:(UITableView *)tableView didHighlightRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:didHighlightRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self didHighlightRowForItem:treeNode.item];
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}
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}
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- (void)tableView:(UITableView *)tableView didUnhighlightRowAtIndexPath:(NSIndexPath *)indexPath
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{
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if ([self.delegate respondsToSelector:@selector(treeView:didUnhighlightRowForItem:)]) {
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RATreeNode *treeNode = [self treeNodeForIndexPath:indexPath];
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[self.delegate treeView:self didUnhighlightRowForItem:treeNode.item];
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}
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}
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#pragma mark - Private Helpers
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- (void)collapseCellForTreeNode:(RATreeNode *)treeNode informDelegate:(BOOL)informDelegate
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{
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if (informDelegate) {
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if ([self.delegate respondsToSelector:@selector(treeView:willCollapseRowForItem:)]) {
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[self.delegate treeView:self willCollapseRowForItem:treeNode.item];
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}
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}
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[CATransaction begin];
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[CATransaction setCompletionBlock:^{
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if ([self.delegate respondsToSelector:@selector(treeView:didCollapseRowForItem:)] &&
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informDelegate) {
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dispatch_async(dispatch_get_main_queue(), ^{
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//Content size of the UITableView isn't updates when completion block of the CATransaction is called. To make it possible for the user of the RATreeView to get a correct content size in the implementation of the 'treeView:didCollapseRowForItem' RATreeView calls this method in the next run loop.
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[self.delegate treeView:self didCollapseRowForItem:treeNode.item];
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});
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}
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}];
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[self collapseCellForTreeNode:treeNode];
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[CATransaction commit];
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}
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- (void)expandCellForTreeNode:(RATreeNode *)treeNode informDelegate:(BOOL)informDelegate
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{
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if (informDelegate) {
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if ([self.delegate respondsToSelector:@selector(treeView:willExpandRowForItem:)]) {
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[self.delegate treeView:self willExpandRowForItem:treeNode.item];
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}
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}
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[CATransaction begin];
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[CATransaction setCompletionBlock:^{
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if ([self.delegate respondsToSelector:@selector(treeView:didExpandRowForItem:)] &&
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informDelegate) {
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dispatch_async(dispatch_get_main_queue(), ^{
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//Content size of the UITableView isn't updates when completion block of the CATransaction is called. To make it possible for the user of the RATreeView to get a correct content size in the implementation of the 'treeView:didExpandRowForItem' RATreeView calls this method in the next run loop.
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[self.delegate treeView:self didExpandRowForItem:treeNode.item];
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});
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}
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}];
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[self expandCellForTreeNode:treeNode];
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[CATransaction commit];
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}
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@end
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