From 401fdbcfac1d7e8b6b91c958a23ec6705dfe4e07 Mon Sep 17 00:00:00 2001 From: Seth ProductEngine Date: Wed, 13 Oct 2010 00:54:57 +0300 Subject: STORM-294 FIXED keyboard navigation in Favorites bar overflow menu. The menu items can now be scrolled cyclically with a keyboard even if not all items are visible at once. --- indra/llui/llmenugl.cpp | 205 +++++++++++++++++++++++++++++++----------------- 1 file changed, 132 insertions(+), 73 deletions(-) (limited to 'indra/llui/llmenugl.cpp') diff --git a/indra/llui/llmenugl.cpp b/indra/llui/llmenugl.cpp index 6d590cf54e..a6cf86d9b8 100644 --- a/indra/llui/llmenugl.cpp +++ b/indra/llui/llmenugl.cpp @@ -1848,89 +1848,104 @@ BOOL LLMenuGL::isOpen() } } -void LLMenuGL::scrollItemsUp() + + +bool LLMenuGL::scrollItems(EScrollingDirection direction) { - // Slowing down the items scrolling when arrow button is held + // Slowing down items scrolling when arrow button is held if (mScrollItemsTimer.hasExpired() && NULL != mFirstVisibleItem) { mScrollItemsTimer.setTimerExpirySec(.033f); } else { - return; + return false; } - item_list_t::iterator cur_item_iter; - item_list_t::iterator prev_item_iter; - for (cur_item_iter = mItems.begin(), prev_item_iter = mItems.begin(); cur_item_iter != mItems.end(); cur_item_iter++) + switch (direction) { - if( (*cur_item_iter) == mFirstVisibleItem) + case SD_UP: + { + item_list_t::iterator cur_item_iter; + item_list_t::iterator prev_item_iter; + for (cur_item_iter = mItems.begin(), prev_item_iter = mItems.begin(); cur_item_iter != mItems.end(); cur_item_iter++) { - break; + if( (*cur_item_iter) == mFirstVisibleItem) + { + break; + } + if ((*cur_item_iter)->getVisible()) + { + prev_item_iter = cur_item_iter; + } } - if ((*cur_item_iter)->getVisible()) + + if ((*prev_item_iter)->getVisible()) { - prev_item_iter = cur_item_iter; + mFirstVisibleItem = *prev_item_iter; } + break; } - - if ((*prev_item_iter)->getVisible()) - { - mFirstVisibleItem = *prev_item_iter; - } - - mNeedsArrange = TRUE; - arrangeAndClear(); -} - -void LLMenuGL::scrollItemsDown() -{ - // Slowing down the items scrolling when arrow button is held - if (mScrollItemsTimer.hasExpired()) - { - mScrollItemsTimer.setTimerExpirySec(.033f); - } - else - { - return; - } - - if (NULL == mFirstVisibleItem) - { - mFirstVisibleItem = *mItems.begin(); - } - - item_list_t::iterator cur_item_iter; - - for (cur_item_iter = mItems.begin(); cur_item_iter != mItems.end(); cur_item_iter++) + case SD_DOWN: { - if( (*cur_item_iter) == mFirstVisibleItem) + if (NULL == mFirstVisibleItem) { - break; + mFirstVisibleItem = *mItems.begin(); } - } - item_list_t::iterator next_item_iter; + item_list_t::iterator cur_item_iter; - if (cur_item_iter != mItems.end()) - { - for (next_item_iter = ++cur_item_iter; next_item_iter != mItems.end(); next_item_iter++) + for (cur_item_iter = mItems.begin(); cur_item_iter != mItems.end(); cur_item_iter++) { - if( (*next_item_iter)->getVisible()) + if( (*cur_item_iter) == mFirstVisibleItem) { break; } } - - if (next_item_iter != mItems.end() && - (*next_item_iter)->getVisible()) + + item_list_t::iterator next_item_iter; + + if (cur_item_iter != mItems.end()) { - mFirstVisibleItem = *next_item_iter; + for (next_item_iter = ++cur_item_iter; next_item_iter != mItems.end(); next_item_iter++) + { + if( (*next_item_iter)->getVisible()) + { + break; + } + } + + if (next_item_iter != mItems.end() && + (*next_item_iter)->getVisible()) + { + mFirstVisibleItem = *next_item_iter; + } } + break; } - + case SD_BEGIN: + { + mFirstVisibleItem = *mItems.begin(); + break; + } + case SD_END: + { + item_list_t::reverse_iterator first_visible_item_iter = mItems.rend(); + + // Advance by mMaxScrollableItems back from the end of the list + // to make the last item visible. + std::advance(first_visible_item_iter, mMaxScrollableItems); + mFirstVisibleItem = *first_visible_item_iter; + break; + } + default: + llwarns << "Unknown scrolling direction: " << direction << llendl; + } + mNeedsArrange = TRUE; arrangeAndClear(); + + return true; } // rearrange the child rects so they fit the shape of the menu. @@ -2162,7 +2177,7 @@ void LLMenuGL::arrange( void ) LLMenuScrollItem::Params item_params; item_params.name(ARROW_UP); item_params.arrow_type(LLMenuScrollItem::ARROW_UP); - item_params.scroll_callback.function(boost::bind(&LLMenuGL::scrollItemsUp, this)); + item_params.scroll_callback.function(boost::bind(&LLMenuGL::scrollItems, this, SD_UP)); mArrowUpItem = LLUICtrlFactory::create(item_params); LLUICtrl::addChild(mArrowUpItem); @@ -2173,7 +2188,7 @@ void LLMenuGL::arrange( void ) LLMenuScrollItem::Params item_params; item_params.name(ARROW_DOWN); item_params.arrow_type(LLMenuScrollItem::ARROW_DOWN); - item_params.scroll_callback.function(boost::bind(&LLMenuGL::scrollItemsDown, this)); + item_params.scroll_callback.function(boost::bind(&LLMenuGL::scrollItems, this, SD_DOWN)); mArrowDownItem = LLUICtrlFactory::create(item_params); LLUICtrl::addChild(mArrowDownItem); @@ -2603,14 +2618,8 @@ LLMenuItemGL* LLMenuGL::highlightNextItem(LLMenuItemGL* cur_item, BOOL skip_disa ((LLFloater*)getParent())->setFocus(TRUE); } - item_list_t::iterator cur_item_iter; - for (cur_item_iter = mItems.begin(); cur_item_iter != mItems.end(); ++cur_item_iter) - { - if( (*cur_item_iter) == cur_item) - { - break; - } - } + // Current item position in the items list + item_list_t::iterator cur_item_iter = std::find(mItems.begin(), mItems.end(), cur_item); item_list_t::iterator next_item_iter; if (cur_item_iter == mItems.end()) @@ -2621,9 +2630,37 @@ LLMenuItemGL* LLMenuGL::highlightNextItem(LLMenuItemGL* cur_item, BOOL skip_disa { next_item_iter = cur_item_iter; next_item_iter++; + + // First visible item position in the items list + item_list_t::iterator first_visible_item_iter = std::find(mItems.begin(), mItems.end(), mFirstVisibleItem); + if (next_item_iter == mItems.end()) { next_item_iter = mItems.begin(); + + // If current item is the last in the list, the menu is scrolled to the beginning + // and the first item is highlighted. + if (mScrollable && !scrollItems(SD_BEGIN)) + { + return NULL; + } + } + // If current item is the last visible, the menu is scrolled one item down + // and the next item is highlighted. + else if (mScrollable && + (U32)std::abs(std::distance(first_visible_item_iter, next_item_iter)) >= mMaxScrollableItems) + { + // Call highlightNextItem() recursively only if the menu was successfully scrolled down. + // If scroll timer hasn't expired yet the menu won't be scrolled and calling + // highlightNextItem() will result in an endless recursion. + if (scrollItems(SD_DOWN)) + { + return highlightNextItem(cur_item, skip_disabled); + } + else + { + return NULL; + } } } @@ -2681,14 +2718,8 @@ LLMenuItemGL* LLMenuGL::highlightPrevItem(LLMenuItemGL* cur_item, BOOL skip_disa ((LLFloater*)getParent())->setFocus(TRUE); } - item_list_t::reverse_iterator cur_item_iter; - for (cur_item_iter = mItems.rbegin(); cur_item_iter != mItems.rend(); ++cur_item_iter) - { - if( (*cur_item_iter) == cur_item) - { - break; - } - } + // Current item reverse position from the end of the list + item_list_t::reverse_iterator cur_item_iter = std::find(mItems.rbegin(), mItems.rend(), cur_item); item_list_t::reverse_iterator prev_item_iter; if (cur_item_iter == mItems.rend()) @@ -2699,9 +2730,37 @@ LLMenuItemGL* LLMenuGL::highlightPrevItem(LLMenuItemGL* cur_item, BOOL skip_disa { prev_item_iter = cur_item_iter; prev_item_iter++; + + // First visible item reverse position in the items list + item_list_t::reverse_iterator first_visible_item_iter = std::find(mItems.rbegin(), mItems.rend(), mFirstVisibleItem); + if (prev_item_iter == mItems.rend()) { prev_item_iter = mItems.rbegin(); + + // If current item is the first in the list, the menu is scrolled to the end + // and the last item is highlighted. + if (mScrollable && !scrollItems(SD_END)) + { + return NULL; + } + } + // If current item is the first visible, the menu is scrolled one item up + // and the previous item is highlighted. + else if (mScrollable && + std::distance(first_visible_item_iter, cur_item_iter) <= 0) + { + // Call highlightNextItem() only if the menu was successfully scrolled up. + // If scroll timer hasn't expired yet the menu won't be scrolled and calling + // highlightNextItem() will result in an endless recursion. + if (scrollItems(SD_UP)) + { + return highlightPrevItem(cur_item, skip_disabled); + } + else + { + return NULL; + } } } @@ -2872,12 +2931,12 @@ BOOL LLMenuGL::handleScrollWheel( S32 x, S32 y, S32 clicks ) if( clicks > 0 ) { while( clicks-- ) - scrollItemsDown(); + scrollItems(SD_DOWN); } else { while( clicks++ ) - scrollItemsUp(); + scrollItems(SD_UP); } return TRUE; -- cgit v1.2.3