Validate buffer name uniqueness constraint, update todo

src/text_editor/management.cpp

@@ -61,6 +61,11 @@ inline Buffer *GetBuffer(String name) {
     return Buffers[0].o;
 }
 
+inline Buffer *GetBufferStrict(String name) {
+    For(Buffers) if (it.o->name == name) return it.o;
+    return NULL;
+}
+
 inline Buffer *BufferNameExists(String name) {
     For(Buffers) if (it.o->name == name) return it.o;
     return NULL;
@@ -258,24 +263,21 @@ Int ConvertUTF8ToUTF16UnixLine(String string, wchar_t *buffer, Int buffer_cap) {
 //      - This is a worry for later time, also we want to handle weird names and so on
 // 3. If file exists we read it, convert to utf16, tabs to spaces etc.
 //
+// We don't really care about opening buffers that don't have proper paths
 Buffer *BufferOpenFile(String path) {
     Allocator sys_allocator = GetSystemAllocator();
     Scratch   scratch;
 
+    path           = GetAbsolutePath(scratch, path);
     Buffer *buffer = GetBuffer(path);
-    if (!IsNull(buffer)) {
+    if (!IsNull(buffer) || (IsNull(buffer) && buffer->name == path)) {
-        return buffer;
-    }
-    if (IsNull(buffer) && buffer->name == path) {
         return buffer;
     }
 
     if (!FileExists(path)) {
-        path   = GetAbsolutePath(scratch, path);
         path   = Intern(&GlobalInternTable, path);
         buffer = CreateBuffer(sys_allocator, path);
     } else if (IsDir(path)) {
-        path                 = GetAbsolutePath(scratch, path);
         path                 = Intern(&GlobalInternTable, path);
         buffer               = CreateBuffer(sys_allocator, path, 4096 * 2);
         buffer->is_directory = true;
@@ -284,7 +286,6 @@ Buffer *BufferOpenFile(String path) {
             IKnowWhatImDoing_Appendf(buffer, "%.*s\n", FmtString(it.filename));
         }
     } else {
-        path          = GetAbsolutePath(scratch, path);
         path          = Intern(&GlobalInternTable, path);
         String string = ReadFile(scratch, path);
         buffer        = CreateBuffer(sys_allocator, path, string.len * 4 + 4096);

src/text_editor/title_bar.cpp

@@ -81,7 +81,14 @@ void ApplyTitleBarChangesToWindow(Window *window, View *view, Buffer *buffer) {
 
     String filepath = ToString(scratch, buffer_string);
     if (filepath != last_buffer->name && !BufferNameExists(filepath)) {
-        last_buffer->name = Intern(&GlobalInternTable, filepath);
+        filepath            = GetAbsolutePath(scratch, filepath);
+        Buffer *find_buffer = GetBufferStrict(filepath);
+        if (find_buffer) {
+            ReportWarningf("couldn't set name for buffer: %.*s, there is already buffer with that name", FmtString(filepath));
+        } else {
+            String new_name   = Intern(&GlobalInternTable, filepath);
+            last_buffer->name = new_name;
+        }
     }
 
     Int buffer_pos = XYToPos(*last_buffer, {column, line});

src/text_editor/todo.txt

@@ -1,9 +1,20 @@
 - garbage collect the buffers, views - store them in free list on destroy
-- PageUp for some reason stops at 2 line before last line
 - adding items to directory should create files on save - it should ask the user (syntax: dir/ | file)
+- refresh the directory - whem opening up again?
+- refresh the file content, periodically check file timestamp for changes and update if neccessary
+- ask user if he really wants to quit even though he has an unsaved buffer - popup window
+- add plumb rules for some web stuff
+- test the code editor: try writing in it, try browsing in it, create test tooling
+- event serialization to lua object format
+- Execute enclosure which is going to execute on every keypress, modification
+- Change mouse keybindings again (left+ctrl could be load - left+ctrl could be add new cursor), exec could be middle mouse
+- Store editor metadata in user accessible buffers? (read only)
+- Find matches using grep, change things in that buffer then apply those changes to all items
+- assert buffer name unique when createing and changing name
 
 - apply clang format
 - apply clang format on save
+- Wait for process and get string
 - OnWindowCommand allow config user to overwrite the WindowCommand keybinding, introduce his own
 
 - ctrl + f - should find Search and select content or add Search
@@ -30,24 +41,20 @@
 - change size of command window because it's wacky
 - combine glyph and selection rendering
 
-
-Windows
-- better teminology then 'active' 'last active' 'current'
 - switch to previous view (ctrl + tab)
 - shift + ctrl + click should open a new window and then with alt it probably should kill it
-    - layout using a tree!!
-    - I don't think we need WindowIDs
     - layouting, resize windows
         - try to incorporate the acme square which allows you to put windows wherever and also scale the border
 BUG: there is a click hang when switching windows sometimes, you click after select and it doesn't switch active window
 
+- PageUp for some reason stops at 2 line before last line
+- page up and down should also scroll and leave you in exactly same scroll
 
 backlog
 - expose a coroutine based scripting enviorment where user can execute shell commands wait for them and perform actions in very linear manner
 - Test stdin writing code
 - Implement shell interaction (last line should have a '$'' symbols, if you press enter it should send that line to stdin of a running shell)
 - drop text into window
-- page up and down should also scroll and leave you in exactly same scroll
 - I think the way sublime text and we display line highlights is confusing with multiple cursors (line highlight can be confused with selection)
 - text_editor --record events.txt    text_editor --playback events.txt
 - make the editor replayable, store events and then replay, be careful about globals
@@ -57,4 +64,3 @@ backlog
 - font cache and on demand unicode loads
 - Set scroll centered, what was the use case for this?
 - color parens, braces
-- auto register commands, but we need to figure out how to properly structure lua stuff