Add table of contents to Gui/journal

gui/journal.lua

@@ -40,7 +40,7 @@ function JournalWindow:init()
             view_id='table_of_contents_panel',
             frame={l=0, w=toc_width, t=0, b=1},
             visible=toc_visible,
-            frame_inset={l=0, t=1, b=1, r=1},
+            frame_inset={l=1, t=0, b=1, r=1},
 
             resize_min={w=20},
             resizable=true,
@@ -61,7 +61,8 @@ function JournalWindow:init()
 
                 if not colllapsed then
                     self.subviews.table_of_contents_panel:reload(
-                        self.subviews.journal_editor:getText()
+                        self.subviews.journal_editor:getText(),
+                        self.subviews.journal_editor:getCursor()
                     )
                 end
 
@@ -107,39 +108,10 @@ function JournalWindow:init()
         }
     })
 
-    self.subviews.table_of_contents_panel:reload(self.init_text)
-end
-
-function JournalWindow:onInput(keys)
-    if (keys.A_MOVE_N_DOWN) then
-        local curr_cursor = self.subviews.journal_editor:getCursor()
-        local section_index, section = self.subviews.table_of_contents_panel:cursorSection(
-            curr_cursor
-        )
-
-        if section.line_cursor == curr_cursor then
-            self.subviews.table_of_contents_panel:setSelectedSection(
-                section_index - 1
-            )
-            self.subviews.table_of_contents_panel:submit()
-        else
-            self:onTableOfContentsSubmit(section_index, section)
-        end
-
-        return false
-    elseif (keys.A_MOVE_S_DOWN) then
-        local section_index = self.subviews.table_of_contents_panel:cursorSection(
-            self.subviews.journal_editor:getCursor()
-        )
-        self.subviews.table_of_contents_panel:setSelectedSection(
-            section_index + 1
-        )
-        self.subviews.table_of_contents_panel:submit()
-
-        return false
-    end
-
-    return JournalWindow.super.onInput(self, keys)
+    self.subviews.table_of_contents_panel:reload(
+        self.init_text,
+        self.subviews.journal_editor:getCursor() or self.init_cursor
+    )
 end
 
 function JournalWindow:sanitizeFrame(frame)
@@ -239,9 +211,8 @@ function JournalWindow:postUpdateLayout()
 end
 
 function JournalWindow:onCursorChange(cursor)
-    local section_index = self.subviews.table_of_contents_panel:cursorSection(
-        cursor
-    )
+    self.subviews.table_of_contents_panel:setCursor(cursor)
+    local section_index = self.subviews.table_of_contents_panel:currentSection()
     self.subviews.table_of_contents_panel:setSelectedSection(section_index)
 
     if self.on_cursor_change ~= nil then
@@ -250,7 +221,10 @@ function JournalWindow:onCursorChange(cursor)
 end
 
 function JournalWindow:onTextChange(text)
-    self.subviews.table_of_contents_panel:reload(text)
+    self.subviews.table_of_contents_panel:reload(
+        text,
+        self.subviews.journal_editor:getCursor()
+    )
 
     if self.on_text_change ~= nil then
         self.on_text_change(text)

internal/journal/table_of_contents.lua

@@ -12,45 +12,81 @@ TableOfContents = defclass(TableOfContents, widgets.Panel)
 TableOfContents.ATTRS {
     frame_style=INVISIBLE_FRAME,
     frame_background = gui.CLEAR_PEN,
-    on_submit=DEFAULT_NIL
+    on_submit=DEFAULT_NIL,
+    text_cursor=DEFAULT_NIL
 }
 
 function TableOfContents:init()
     self:addviews({
         widgets.List{
-            frame={l=1, t=0, r=1, b=0},
+            frame={l=0, t=0, r=0, b=3},
             view_id='table_of_contents',
             choices={},
             on_submit=self.on_submit
         },
+        widgets.HotkeyLabel{
+            frame={b=0},
+            key='A_MOVE_N_DOWN',
+            label='Previous Section',
+            on_activate=self:callback('previousSection'),
+        },
+        widgets.HotkeyLabel{
+            frame={b=1},
+            key='A_MOVE_S_DOWN',
+            label='Next Section',
+            on_activate=self:callback('nextSection'),
+        }
     })
 end
 
-function TableOfContents:cursorSection(cursor)
-    local section_ind = nil
+function TableOfContents:previousSection()
+    local section_cursor, section = self:currentSection()
 
-    for ind, choice in ipairs(self.subviews.table_of_contents.choices) do
-        if choice.line_cursor > cursor then
-            break
-        end
-        section_ind = ind
+    if section.line_cursor == self.text_cursor then
+        self.subviews.table_of_contents:setSelected(section_cursor - 1)
     end
 
-    return section_ind, self.subviews.table_of_contents.choices[section_ind]
+    self.subviews.table_of_contents:submit()
+end
+
+function TableOfContents:nextSection()
+    local curr_sel = self.subviews.table_of_contents:getSelected()
+
+    local target_sel = self.text_cursor and
+        self:currentSection() + 1 or curr_sel + 1
+
+    if curr_sel ~= target_sel then
+        self.subviews.table_of_contents:setSelected(target_sel)
+        self.subviews.table_of_contents:submit()
+    end
 end
 
 function TableOfContents:setSelectedSection(section_index)
     local curr_sel = self.subviews.table_of_contents:getSelected()
+
     if curr_sel ~= section_index then
         self.subviews.table_of_contents:setSelected(section_index)
     end
 end
 
-function TableOfContents:submit()
-    return self.subviews.table_of_contents:submit()
+function TableOfContents:currentSection()
+    local section_ind = nil
+
+    for ind, choice in ipairs(self.subviews.table_of_contents.choices) do
+        if choice.line_cursor > self.text_cursor then
+            break
+        end
+        section_ind = ind
+    end
+
+    return section_ind, self.subviews.table_of_contents.choices[section_ind]
+end
+
+function TableOfContents:setCursor(cursor)
+    self.text_cursor = cursor
 end
 
-function TableOfContents:reload(text)
+function TableOfContents:reload(text, cursor)
     if not self.visible then
         return
     end
@@ -70,5 +106,6 @@ function TableOfContents:reload(text)
         line_cursor = line_cursor + #line + 1
     end
 
+    self.text_cursor = cursor
     self.subviews.table_of_contents:setChoices(sections)
 end