1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/editor/libeditor/html/nsHTMLInlineTableEditor.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,272 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +#include "mozilla/dom/Element.h"
1.9 +#include "nsAString.h"
1.10 +#include "nsCOMPtr.h"
1.11 +#include "nsDebug.h"
1.12 +#include "nsError.h"
1.13 +#include "nsHTMLEditUtils.h"
1.14 +#include "nsHTMLEditor.h"
1.15 +#include "nsIContent.h"
1.16 +#include "nsIDOMElement.h"
1.17 +#include "nsIDOMEventTarget.h"
1.18 +#include "nsIDOMHTMLElement.h"
1.19 +#include "nsIDOMNode.h"
1.20 +#include "nsIHTMLEditor.h"
1.21 +#include "nsIHTMLObjectResizer.h"
1.22 +#include "nsIPresShell.h"
1.23 +#include "nsLiteralString.h"
1.24 +#include "nsReadableUtils.h"
1.25 +#include "nsString.h"
1.26 +#include "nscore.h"
1.27 +
1.28 +// Uncomment the following line if you want to disable
1.29 +// table deletion when the only column/row is removed
1.30 +// #define DISABLE_TABLE_DELETION 1
1.31 +
1.32 +NS_IMETHODIMP
1.33 +nsHTMLEditor::SetInlineTableEditingEnabled(bool aIsEnabled)
1.34 +{
1.35 + mIsInlineTableEditingEnabled = aIsEnabled;
1.36 + return NS_OK;
1.37 +}
1.38 +
1.39 +NS_IMETHODIMP
1.40 +nsHTMLEditor::GetInlineTableEditingEnabled(bool * aIsEnabled)
1.41 +{
1.42 + *aIsEnabled = mIsInlineTableEditingEnabled;
1.43 + return NS_OK;
1.44 +}
1.45 +
1.46 +NS_IMETHODIMP
1.47 +nsHTMLEditor::ShowInlineTableEditingUI(nsIDOMElement * aCell)
1.48 +{
1.49 + NS_ENSURE_ARG_POINTER(aCell);
1.50 +
1.51 + // do nothing if aCell is not a table cell...
1.52 + if (!nsHTMLEditUtils::IsTableCell(aCell))
1.53 + return NS_OK;
1.54 +
1.55 + if (mInlineEditedCell) {
1.56 + NS_ERROR("call HideInlineTableEditingUI first");
1.57 + return NS_ERROR_UNEXPECTED;
1.58 + }
1.59 +
1.60 + // the resizers and the shadow will be anonymous children of the body
1.61 + nsCOMPtr<nsIDOMElement> bodyElement = do_QueryInterface(GetRoot());
1.62 + NS_ENSURE_TRUE(bodyElement, NS_ERROR_NULL_POINTER);
1.63 +
1.64 + CreateAnonymousElement(NS_LITERAL_STRING("a"), bodyElement,
1.65 + NS_LITERAL_STRING("mozTableAddColumnBefore"),
1.66 + false, getter_AddRefs(mAddColumnBeforeButton));
1.67 + CreateAnonymousElement(NS_LITERAL_STRING("a"), bodyElement,
1.68 + NS_LITERAL_STRING("mozTableRemoveColumn"),
1.69 + false, getter_AddRefs(mRemoveColumnButton));
1.70 + CreateAnonymousElement(NS_LITERAL_STRING("a"), bodyElement,
1.71 + NS_LITERAL_STRING("mozTableAddColumnAfter"),
1.72 + false, getter_AddRefs(mAddColumnAfterButton));
1.73 +
1.74 + CreateAnonymousElement(NS_LITERAL_STRING("a"), bodyElement,
1.75 + NS_LITERAL_STRING("mozTableAddRowBefore"),
1.76 + false, getter_AddRefs(mAddRowBeforeButton));
1.77 + CreateAnonymousElement(NS_LITERAL_STRING("a"), bodyElement,
1.78 + NS_LITERAL_STRING("mozTableRemoveRow"),
1.79 + false, getter_AddRefs(mRemoveRowButton));
1.80 + CreateAnonymousElement(NS_LITERAL_STRING("a"), bodyElement,
1.81 + NS_LITERAL_STRING("mozTableAddRowAfter"),
1.82 + false, getter_AddRefs(mAddRowAfterButton));
1.83 +
1.84 + AddMouseClickListener(mAddColumnBeforeButton);
1.85 + AddMouseClickListener(mRemoveColumnButton);
1.86 + AddMouseClickListener(mAddColumnAfterButton);
1.87 + AddMouseClickListener(mAddRowBeforeButton);
1.88 + AddMouseClickListener(mRemoveRowButton);
1.89 + AddMouseClickListener(mAddRowAfterButton);
1.90 +
1.91 + mInlineEditedCell = aCell;
1.92 + return RefreshInlineTableEditingUI();
1.93 +}
1.94 +
1.95 +NS_IMETHODIMP
1.96 +nsHTMLEditor::HideInlineTableEditingUI()
1.97 +{
1.98 + mInlineEditedCell = nullptr;
1.99 +
1.100 + RemoveMouseClickListener(mAddColumnBeforeButton);
1.101 + RemoveMouseClickListener(mRemoveColumnButton);
1.102 + RemoveMouseClickListener(mAddColumnAfterButton);
1.103 + RemoveMouseClickListener(mAddRowBeforeButton);
1.104 + RemoveMouseClickListener(mRemoveRowButton);
1.105 + RemoveMouseClickListener(mAddRowAfterButton);
1.106 +
1.107 + // get the presshell's document observer interface.
1.108 + nsCOMPtr<nsIPresShell> ps = GetPresShell();
1.109 + // We allow the pres shell to be null; when it is, we presume there
1.110 + // are no document observers to notify, but we still want to
1.111 + // UnbindFromTree.
1.112 +
1.113 + // get the root content node.
1.114 + nsCOMPtr<nsIContent> bodyContent = GetRoot();
1.115 + NS_ENSURE_TRUE(bodyContent, NS_ERROR_FAILURE);
1.116 +
1.117 + DeleteRefToAnonymousNode(mAddColumnBeforeButton, bodyContent, ps);
1.118 + mAddColumnBeforeButton = nullptr;
1.119 + DeleteRefToAnonymousNode(mRemoveColumnButton, bodyContent, ps);
1.120 + mRemoveColumnButton = nullptr;
1.121 + DeleteRefToAnonymousNode(mAddColumnAfterButton, bodyContent, ps);
1.122 + mAddColumnAfterButton = nullptr;
1.123 + DeleteRefToAnonymousNode(mAddRowBeforeButton, bodyContent, ps);
1.124 + mAddRowBeforeButton = nullptr;
1.125 + DeleteRefToAnonymousNode(mRemoveRowButton, bodyContent, ps);
1.126 + mRemoveRowButton = nullptr;
1.127 + DeleteRefToAnonymousNode(mAddRowAfterButton, bodyContent, ps);
1.128 + mAddRowAfterButton = nullptr;
1.129 +
1.130 + return NS_OK;
1.131 +}
1.132 +
1.133 +NS_IMETHODIMP
1.134 +nsHTMLEditor::DoInlineTableEditingAction(nsIDOMElement * aElement)
1.135 +{
1.136 + NS_ENSURE_ARG_POINTER(aElement);
1.137 + bool anonElement = false;
1.138 + if (aElement &&
1.139 + NS_SUCCEEDED(aElement->HasAttribute(NS_LITERAL_STRING("_moz_anonclass"), &anonElement)) &&
1.140 + anonElement) {
1.141 + nsAutoString anonclass;
1.142 + nsresult res = aElement->GetAttribute(NS_LITERAL_STRING("_moz_anonclass"), anonclass);
1.143 + NS_ENSURE_SUCCESS(res, res);
1.144 +
1.145 + if (!StringBeginsWith(anonclass, NS_LITERAL_STRING("mozTable")))
1.146 + return NS_OK;
1.147 +
1.148 + nsCOMPtr<nsIDOMNode> tableNode = GetEnclosingTable(mInlineEditedCell);
1.149 + nsCOMPtr<nsIDOMElement> tableElement = do_QueryInterface(tableNode);
1.150 + int32_t rowCount, colCount;
1.151 + res = GetTableSize(tableElement, &rowCount, &colCount);
1.152 + NS_ENSURE_SUCCESS(res, res);
1.153 +
1.154 + bool hideUI = false;
1.155 + bool hideResizersWithInlineTableUI = (mResizedObject == tableElement);
1.156 +
1.157 + if (anonclass.EqualsLiteral("mozTableAddColumnBefore"))
1.158 + InsertTableColumn(1, false);
1.159 + else if (anonclass.EqualsLiteral("mozTableAddColumnAfter"))
1.160 + InsertTableColumn(1, true);
1.161 + else if (anonclass.EqualsLiteral("mozTableAddRowBefore"))
1.162 + InsertTableRow(1, false);
1.163 + else if (anonclass.EqualsLiteral("mozTableAddRowAfter"))
1.164 + InsertTableRow(1, true);
1.165 + else if (anonclass.EqualsLiteral("mozTableRemoveColumn")) {
1.166 + DeleteTableColumn(1);
1.167 +#ifndef DISABLE_TABLE_DELETION
1.168 + hideUI = (colCount == 1);
1.169 +#endif
1.170 + }
1.171 + else if (anonclass.EqualsLiteral("mozTableRemoveRow")) {
1.172 + DeleteTableRow(1);
1.173 +#ifndef DISABLE_TABLE_DELETION
1.174 + hideUI = (rowCount == 1);
1.175 +#endif
1.176 + }
1.177 + else
1.178 + return NS_OK;
1.179 +
1.180 + if (hideUI) {
1.181 + HideInlineTableEditingUI();
1.182 + if (hideResizersWithInlineTableUI)
1.183 + HideResizers();
1.184 + }
1.185 + }
1.186 +
1.187 + return NS_OK;
1.188 +}
1.189 +
1.190 +void
1.191 +nsHTMLEditor::AddMouseClickListener(nsIDOMElement * aElement)
1.192 +{
1.193 + nsCOMPtr<nsIDOMEventTarget> evtTarget(do_QueryInterface(aElement));
1.194 + if (evtTarget) {
1.195 + evtTarget->AddEventListener(NS_LITERAL_STRING("click"),
1.196 + mEventListener, true);
1.197 + }
1.198 +}
1.199 +
1.200 +void
1.201 +nsHTMLEditor::RemoveMouseClickListener(nsIDOMElement * aElement)
1.202 +{
1.203 + nsCOMPtr<nsIDOMEventTarget> evtTarget(do_QueryInterface(aElement));
1.204 + if (evtTarget) {
1.205 + evtTarget->RemoveEventListener(NS_LITERAL_STRING("click"),
1.206 + mEventListener, true);
1.207 + }
1.208 +}
1.209 +
1.210 +NS_IMETHODIMP
1.211 +nsHTMLEditor::RefreshInlineTableEditingUI()
1.212 +{
1.213 + nsCOMPtr<nsIDOMHTMLElement> htmlElement = do_QueryInterface(mInlineEditedCell);
1.214 + if (!htmlElement) {
1.215 + return NS_ERROR_NULL_POINTER;
1.216 + }
1.217 +
1.218 + int32_t xCell, yCell, wCell, hCell;
1.219 + GetElementOrigin(mInlineEditedCell, xCell, yCell);
1.220 +
1.221 + nsresult res = htmlElement->GetOffsetWidth(&wCell);
1.222 + NS_ENSURE_SUCCESS(res, res);
1.223 + res = htmlElement->GetOffsetHeight(&hCell);
1.224 + NS_ENSURE_SUCCESS(res, res);
1.225 +
1.226 + int32_t xHoriz = xCell + wCell/2;
1.227 + int32_t yVert = yCell + hCell/2;
1.228 +
1.229 + nsCOMPtr<nsIDOMNode> tableNode = GetEnclosingTable(mInlineEditedCell);
1.230 + nsCOMPtr<nsIDOMElement> tableElement = do_QueryInterface(tableNode);
1.231 + int32_t rowCount, colCount;
1.232 + res = GetTableSize(tableElement, &rowCount, &colCount);
1.233 + NS_ENSURE_SUCCESS(res, res);
1.234 +
1.235 + SetAnonymousElementPosition(xHoriz-10, yCell-7, mAddColumnBeforeButton);
1.236 +#ifdef DISABLE_TABLE_DELETION
1.237 + NS_NAMED_LITERAL_STRING(classStr, "class");
1.238 +
1.239 + if (colCount== 1) {
1.240 + mRemoveColumnButton->SetAttribute(classStr,
1.241 + NS_LITERAL_STRING("hidden"));
1.242 + }
1.243 + else {
1.244 + bool hasClass = false;
1.245 + res = mRemoveColumnButton->HasAttribute(classStr, &hasClass);
1.246 + if (NS_SUCCEEDED(res) && hasClass)
1.247 + mRemoveColumnButton->RemoveAttribute(classStr);
1.248 +#endif
1.249 + SetAnonymousElementPosition(xHoriz-4, yCell-7, mRemoveColumnButton);
1.250 +#ifdef DISABLE_TABLE_DELETION
1.251 + }
1.252 +#endif
1.253 + SetAnonymousElementPosition(xHoriz+6, yCell-7, mAddColumnAfterButton);
1.254 +
1.255 + SetAnonymousElementPosition(xCell-7, yVert-10, mAddRowBeforeButton);
1.256 +#ifdef DISABLE_TABLE_DELETION
1.257 + if (rowCount== 1) {
1.258 + mRemoveRowButton->SetAttribute(classStr,
1.259 + NS_LITERAL_STRING("hidden"));
1.260 + }
1.261 + else {
1.262 + bool hasClass = false;
1.263 + res = mRemoveRowButton->HasAttribute(classStr, &hasClass);
1.264 + if (NS_SUCCEEDED(res) && hasClass)
1.265 + mRemoveRowButton->RemoveAttribute(classStr);
1.266 +#endif
1.267 + SetAnonymousElementPosition(xCell-7, yVert-4, mRemoveRowButton);
1.268 +#ifdef DISABLE_TABLE_DELETION
1.269 + }
1.270 +#endif
1.271 + SetAnonymousElementPosition(xCell-7, yVert+6, mAddRowAfterButton);
1.272 +
1.273 + return NS_OK;
1.274 +}
1.275 +
